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65495495970 = 23658984293
BaseRepresentation
bin111100111111110101…
…011111010100100010
320021001111022221000000
4330333311133110202
52033113321332340
650031015440430
74506016346562
oct747765372442
9207044287000
1065495495970
112585a555573
121083a386116
13623a154a58
143254696da2
151a84e32d30
hexf3fd5f522

65495495970 has 56 divisors (see below), whose sum is σ = 176757000156. Its totient is φ = 17465463648.

The previous prime is 65495495953. The next prime is 65495495971. The reversal of 65495495970 is 7959459456.

65495495970 is a `hidden beast` number, since 6 + 54 + 9 + 5 + 495 + 97 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 60913695249 + 4581800721 = 246807^2 + 67689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65495495898 and 65495495907.

It is not an unprimeable number, because it can be changed into a prime (65495495971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4484857 + ... + 4499436.

Almost surely, 265495495970 is an apocalyptic number.

65495495970 is an abundant number, since it is smaller than the sum of its proper divisors (111261504186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65495495970 is an equidigital number, since it uses as much as digits as its factorization.

65495495970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984318 (or 8984303 counting only the distinct ones).

The product of its (nonzero) digits is 61236000, while the sum is 63.

The spelling of 65495495970 in words is "sixty-five billion, four hundred ninety-five million, four hundred ninety-five thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 729 810 1215 1458 2430 3645 7290 8984293 17968586 26952879 44921465 53905758 80858637 89842930 134764395 161717274 242575911 269528790 404293185 485151822 727727733 808586370 1212879555 1455455466 2183183199 2425759110 3638638665 4366366398 6549549597 7277277330 10915915995 13099099194 21831831990 32747747985 65495495970