56151101666 has 32 divisors (see below), whose sum is σ = 92463856128. Its totient is φ = 25362211840.

The previous prime is 56151101623. The next prime is 56151101687. The reversal of 56151101666 is 66610115165.

56151101666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11937071 + ... + 11941773.

It is an arithmetic number, because the mean of its divisors is an integer number (2889495504).

Almost surely, 2^56151101666 is an apocalyptic number.

56151101666 is a deficient number, since it is larger than the sum of its proper divisors (36312754462).

56151101666 is a wasteful number, since it uses less digits than its factorization.

56151101666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8026.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 56151101666 in words is "fifty-six billion, one hundred fifty-one million, one hundred one thousand, six hundred sixty-six".