656651166616 has 8 divisors (see below), whose sum is σ = 1231220937420. Its totient is φ = 328325583304.

The previous prime is 656651166571. The next prime is 656651166631. The reversal of 656651166616 is 616661156656.

656651166616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41040697906 + ... + 41040697921.

Almost surely, 2^656651166616 is an apocalyptic number.

It is an amenable number.

656651166616 is a deficient number, since it is larger than the sum of its proper divisors (574569770804).

656651166616 is a wasteful number, since it uses less digits than its factorization.

656651166616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82081395833 (or 82081395829 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 55.

The spelling of 656651166616 in words is "six hundred fifty-six billion, six hundred fifty-one million, one hundred sixty-six thousand, six hundred sixteen".