396915564556 has 18 divisors (see below), whose sum is σ = 808006685388. Its totient is φ = 170106670440.

The previous prime is 396915564431. The next prime is 396915564571. The reversal of 396915564556 is 655465519693.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1012539510 + ... + 1012539901.

Almost surely, 2^396915564556 is an apocalyptic number.

It is an amenable number.

396915564556 is an abundant number, since it is smaller than the sum of its proper divisors (411091120832).

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

396915564556 is a wasteful number, since it uses less digits than its factorization.

396915564556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025079429 (or 2025079420 counting only the distinct ones).

The product of its digits is 131220000, while the sum is 64.

The spelling of 396915564556 in words is "three hundred ninety-six billion, nine hundred fifteen million, five hundred sixty-four thousand, five hundred fifty-six".