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65466101641 = 612574175933
BaseRepresentation
bin111100111110000101…
…010110111110001001
320020222110000112120011
4330332011112332021
52033033310223031
650024045431521
74505211453043
oct747605267611
9206873015504
1065466101641
11258449a9136
121083056b5a1
136234032665
143250804a93
151a825786b1
hexf3e156f89

65466101641 has 8 divisors (see below), whose sum is σ = 66798240264. Its totient is φ = 64142315520.

The previous prime is 65466101639. The next prime is 65466101647. The reversal of 65466101641 is 14610166456.

It can be written as a sum of positive squares in 4 ways, for example, as 1656815616 + 63809286025 = 40704^2 + 252605^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65466101641 - 21 = 65466101639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65466101594 and 65466101603.

It is not an unprimeable number, because it can be changed into a prime (65466101647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2072290 + ... + 2103643.

It is an arithmetic number, because the mean of its divisors is an integer number (8349780033).

Almost surely, 265466101641 is an apocalyptic number.

65466101641 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

65466101641 is a deficient number, since it is larger than the sum of its proper divisors (1332138623).

65466101641 is a wasteful number, since it uses less digits than its factorization.

65466101641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176251.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 65466101641 in words is "sixty-five billion, four hundred sixty-six million, one hundred one thousand, six hundred forty-one".

Divisors: 1 61 257 15677 4175933 254731913 1073214781 65466101641