56816668 has 6 divisors (see below), whose sum is σ = 99429176. Its totient is φ = 28408332.

The previous prime is 56816663. The next prime is 56816671. The reversal of 56816668 is 86661865.

56816668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56816663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7102080 + ... + 7102087.

Almost surely, 2^56816668 is an apocalyptic number.

It is an amenable number.

56816668 is a deficient number, since it is larger than the sum of its proper divisors (42612508).

56816668 is a wasteful number, since it uses less digits than its factorization.

56816668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14204171 (or 14204169 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 56816668 is about 7537.6831984370. The cubic root of 56816668 is about 384.4370656425.

The spelling of 56816668 in words is "fifty-six million, eight hundred sixteen thousand, six hundred sixty-eight".