65756915464 has 16 divisors (see below), whose sum is σ = 123298701120. Its totient is φ = 32877261840.

The previous prime is 65756915461. The next prime is 65756915489. The reversal of 65756915464 is 46451965756.

It is a junction number, because it is equal to n+sod(n) for n = 65756915399 and 65756915408.

It is not an unprimeable number, because it can be changed into a prime (65756915461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110877 + ... + 379219.

It is an arithmetic number, because the mean of its divisors is an integer number (7706168820).

Almost surely, 2^65756915464 is an apocalyptic number.

It is an amenable number.

65756915464 is a deficient number, since it is larger than the sum of its proper divisors (57541785656).

65756915464 is a wasteful number, since it uses less digits than its factorization.

65756915464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298980 (or 298976 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 58.

The spelling of 65756915464 in words is "sixty-five billion, seven hundred fifty-six million, nine hundred fifteen thousand, four hundred sixty-four".