56662553886 has 16 divisors (see below), whose sum is σ = 115182897168. Its totient is φ = 18577886400.

The previous prime is 56662553881. The next prime is 56662553903. The reversal of 56662553886 is 68835526665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56662553881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77407495 + ... + 77408226.

It is an arithmetic number, because the mean of its divisors is an integer number (7198931073).

Almost surely, 2^56662553886 is an apocalyptic number.

56662553886 is an abundant number, since it is smaller than the sum of its proper divisors (58520343282).

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

56662553886 is a wasteful number, since it uses less digits than its factorization.

56662553886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154815787.

The product of its digits is 62208000, while the sum is 60.

It can be divided in two parts, 5666 and 2553886, that added together give a palindrome (2559552).

The spelling of 56662553886 in words is "fifty-six billion, six hundred sixty-two million, five hundred fifty-three thousand, eight hundred eighty-six".