3656400384004 has 24 divisors (see below), whose sum is σ = 6605195482368. Its totient is φ = 1769203194720.

The previous prime is 3656400383983. The next prime is 3656400384029. The reversal of 3656400384004 is 4004830046563.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13344042 + ... + 13615294.

It is an arithmetic number, because the mean of its divisors is an integer number (275216478432).

Almost surely, 2^{3656400384004} is an apocalyptic number.

It is an amenable number.

3656400384004 is a deficient number, since it is larger than the sum of its proper divisors (2948795098364).

3656400384004 is a wasteful number, since it uses less digits than its factorization.

3656400384004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379995 (or 379993 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

It can be divided in two parts, 3656400 and 384004, that added together give a palindrome (4040404).

The spelling of 3656400384004 in words is "three trillion, six hundred fifty-six billion, four hundred million, three hundred eighty-four thousand, four".