56511662170 has 32 divisors (see below), whose sum is σ = 106165572480. Its totient is φ = 21617386560.

The previous prime is 56511662161. The next prime is 56511662173. The reversal of 56511662170 is 7126611565.

It is a super-2 number, since 2×56511662170² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56511662173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1223700 + ... + 1269040.

It is an arithmetic number, because the mean of its divisors is an integer number (3317674140).

Almost surely, 2^56511662170 is an apocalyptic number.

56511662170 is a deficient number, since it is larger than the sum of its proper divisors (49653910310).

56511662170 is a wasteful number, since it uses less digits than its factorization.

56511662170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50790.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 56511662170 in words is "fifty-six billion, five hundred eleven million, six hundred sixty-two thousand, one hundred seventy".