56485644658464 has 144 divisors (see below), whose sum is σ = 172487203848288. Its totient is φ = 16138357659648.

The previous prime is 56485644658463. The next prime is 56485644658517. The reversal of 56485644658464 is 46485644658465.

It is not an unprimeable number, because it can be changed into a prime (56485644658463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228006087 + ... + 228253689.

It is an arithmetic number, because the mean of its divisors is an integer number (1197827804502).

Almost surely, 2^{56485644658464} is an apocalyptic number.

It is an amenable number.

56485644658464 is an abundant number, since it is smaller than the sum of its proper divisors (116001559189824).

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

56485644658464 is a wasteful number, since it uses less digits than its factorization.

56485644658464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296127 (or 296112 counting only the distinct ones).

The product of its digits is 10616832000, while the sum is 75.

Subtracting from 56485644658464 its reverse (46485644658465), we obtain a palindrome (9999999999999).

The spelling of 56485644658464 in words is "fifty-six trillion, four hundred eighty-five billion, six hundred forty-four million, six hundred fifty-eight thousand, four hundred sixty-four".