6656161675 has 12 divisors (see below), whose sum is σ = 8254846656. Its totient is φ = 5324151200.

The previous prime is 6656161663. The next prime is 6656161709. The reversal of 6656161675 is 5761616566.

It is a de Polignac number, because none of the positive numbers 2^k-6656161675 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206502 + ... + 236548.

It is an arithmetic number, because the mean of its divisors is an integer number (687903888).

Almost surely, 2^6656161675 is an apocalyptic number.

6656161675 is a deficient number, since it is larger than the sum of its proper divisors (1598684981).

6656161675 is a wasteful number, since it uses less digits than its factorization.

6656161675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38918 (or 38913 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 49.

The square root of 6656161675 is about 81585.3030575973. The cubic root of 6656161675 is about 1881.0829805034.

The spelling of 6656161675 in words is "six billion, six hundred fifty-six million, one hundred sixty-one thousand, six hundred seventy-five".