56668615488 has 84 divisors (see below), whose sum is σ = 163246917600. Its totient is φ = 18794578176.

The previous prime is 56668615483. The next prime is 56668615489. The reversal of 56668615488 is 88451686665.

It is a super-2 number, since 2×56668615488² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56668615483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132570 + ... + 361817.

Almost surely, 2^56668615488 is an apocalyptic number.

It is an amenable number.

56668615488 is an abundant number, since it is smaller than the sum of its proper divisors (106578302112).

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

56668615488 is a wasteful number, since it uses less digits than its factorization.

56668615488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494604 (or 494591 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 63.

The spelling of 56668615488 in words is "fifty-six billion, six hundred sixty-eight million, six hundred fifteen thousand, four hundred eighty-eight".