56645000446 has 8 divisors (see below), whose sum is σ = 87263919720. Its totient is φ = 27557027208.

The previous prime is 56645000443. The next prime is 56645000521. The reversal of 56645000446 is 64400054665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 56645000399 and 56645000408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56645000443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382736416 + ... + 382736563.

It is an arithmetic number, because the mean of its divisors is an integer number (10907989965).

Almost surely, 2^56645000446 is an apocalyptic number.

56645000446 is a deficient number, since it is larger than the sum of its proper divisors (30618919274).

56645000446 is a wasteful number, since it uses less digits than its factorization.

56645000446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765473018.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 56645000446 in words is "fifty-six billion, six hundred forty-five million, four hundred forty-six", and thus it is an aban number.