56756217866 has 16 divisors (see below), whose sum is σ = 85468735968. Its totient is φ = 28266829200.

The previous prime is 56756217797. The next prime is 56756217887. The reversal of 56756217866 is 66871265765.

56756217866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558101 + ... + 651911.

It is an arithmetic number, because the mean of its divisors is an integer number (5341795998).

Almost surely, 2^56756217866 is an apocalyptic number.

56756217866 is a deficient number, since it is larger than the sum of its proper divisors (28712518102).

56756217866 is a wasteful number, since it uses less digits than its factorization.

56756217866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94997.

The product of its digits is 25401600, while the sum is 59.

The spelling of 56756217866 in words is "fifty-six billion, seven hundred fifty-six million, two hundred seventeen thousand, eight hundred sixty-six".