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65136854956 = 221923101368947
BaseRepresentation
bin111100101010011101…
…011000011110101100
320020010111111002000111
4330222131120132230
52031400013324311
645531244505404
74464103063135
oct745235303654
9206114432014
1065136854956
1125696069238
121075a24b264
1361b0a64734
14321cbbac8c
151a636ddd21
hexf2a7587ac

65136854956 has 48 divisors (see below), whose sum is σ = 126445858560. Its totient is φ = 29220523200.

The previous prime is 65136854927. The next prime is 65136854989. The reversal of 65136854956 is 65945863156.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 65136854956.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7926 + ... + 361021.

It is an arithmetic number, because the mean of its divisors is an integer number (2634288720).

Almost surely, 265136854956 is an apocalyptic number.

It is an amenable number.

65136854956 is a deficient number, since it is larger than the sum of its proper divisors (61309003604).

65136854956 is a wasteful number, since it uses less digits than its factorization.

65136854956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369094 (or 369092 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 58.

The spelling of 65136854956 in words is "sixty-five billion, one hundred thirty-six million, eight hundred fifty-four thousand, nine hundred fifty-six".

Divisors: 1 2 4 19 23 38 46 76 92 101 202 404 437 874 1748 1919 2323 3838 4646 7676 9292 44137 88274 176548 368947 737894 1475788 7009993 8485781 14019986 16971562 28039972 33943124 37263647 74527294 149054588 161229839 322459678 644919356 708009293 857063881 1416018586 1714127762 2832037172 3428255524 16284213739 32568427478 65136854956