656515161606 has 16 divisors (see below), whose sum is σ = 1390267401264. Its totient is φ = 205965540864.

The previous prime is 656515161587. The next prime is 656515161611. The reversal of 656515161606 is 606161515656.

656515161606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 3218211475 + ... + 3218211678.

It is an arithmetic number, because the mean of its divisors is an integer number (86891712579).

Almost surely, 2^656515161606 is an apocalyptic number.

656515161606 is an abundant number, since it is smaller than the sum of its proper divisors (733752239658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656515161606 is a wasteful number, since it uses less digits than its factorization.

656515161606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6436423175.

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 656515161606 in words is "six hundred fifty-six billion, five hundred fifteen million, one hundred sixty-one thousand, six hundred six".