56613218072 has 32 divisors (see below), whose sum is σ = 111800217600. Its totient is φ = 26822831904.

The previous prime is 56613218069. The next prime is 56613218093. The reversal of 56613218072 is 27081231665.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1418072 + ... + 1457447.

It is an arithmetic number, because the mean of its divisors is an integer number (3493756800).

Almost surely, 2^56613218072 is an apocalyptic number.

It is an amenable number.

56613218072 is a deficient number, since it is larger than the sum of its proper divisors (55186999528).

56613218072 is a wasteful number, since it uses less digits than its factorization.

56613218072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875655 (or 2875651 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 56613218072 in words is "fifty-six billion, six hundred thirteen million, two hundred eighteen thousand, seventy-two".