65397444504 has 64 divisors (see below), whose sum is σ = 192877271040. Its totient is φ = 18082241280.

The previous prime is 65397444451. The next prime is 65397444533. The reversal of 65397444504 is 40544479356.

It is a congruent number.

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, 6273349 + ... + 6283764.

It is an arithmetic number, because the mean of its divisors is an integer number (3013707360).

Almost surely, 2^65397444504 is an apocalyptic number.

It is an amenable number.

65397444504 is an abundant number, since it is smaller than the sum of its proper divisors (127479826536).

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

65397444504 is a wasteful number, since it uses less digits than its factorization.

65397444504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12557160 (or 12557156 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 51.

The spelling of 65397444504 in words is "sixty-five billion, three hundred ninety-seven million, four hundred forty-four thousand, five hundred four".