56161217696 has 24 divisors (see below), whose sum is σ = 110587750560. Its totient is φ = 28075439808.

The previous prime is 56161217681. The next prime is 56161217719. The reversal of 56161217696 is 69671216165.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18095 + ... + 335633.

It is an arithmetic number, because the mean of its divisors is an integer number (4607822940).

Almost surely, 2^56161217696 is an apocalyptic number.

It is an amenable number.

56161217696 is a deficient number, since it is larger than the sum of its proper divisors (54426532864).

56161217696 is a wasteful number, since it uses less digits than its factorization.

56161217696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323076 (or 323068 counting only the distinct ones).

The product of its digits is 816480, while the sum is 50.

The spelling of 56161217696 in words is "fifty-six billion, one hundred sixty-one million, two hundred seventeen thousand, six hundred ninety-six".