40565256504 has 64 divisors (see below), whose sum is σ = 101689136640. Its totient is φ = 13485014400.

The previous prime is 40565256493. The next prime is 40565256559.

It is a happy number.

40565256504 is nontrivially palindromic in base 10.

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, 21337954 + ... + 21339854.

It is an arithmetic number, because the mean of its divisors is an integer number (1588892760).

Almost surely, 2^40565256504 is an apocalyptic number.

It is an amenable number.

40565256504 is an abundant number, since it is smaller than the sum of its proper divisors (61123880136).

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

40565256504 is a wasteful number, since it uses less digits than its factorization.

40565256504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860 (or 3856 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 40565256504 in words is "forty billion, five hundred sixty-five million, two hundred fifty-six thousand, five hundred four".