656671555010 has 32 divisors (see below), whose sum is σ = 1317409194240. Its totient is φ = 234206076672.

The previous prime is 656671555009. The next prime is 656671555069. The reversal of 656671555010 is 10555176656.

656671555010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×656671555010² (a number of 24 digits) contains 22 as substring.

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, 101648714 + ... + 101655173.

It is an arithmetic number, because the mean of its divisors is an integer number (41169037320).

Almost surely, 2^656671555010 is an apocalyptic number.

656671555010 is an abundant number, since it is smaller than the sum of its proper divisors (660737639230).

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

656671555010 is a wasteful number, since it uses less digits than its factorization.

656671555010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203303930.

The product of its (nonzero) digits is 945000, while the sum is 47.

The spelling of 656671555010 in words is "six hundred fifty-six billion, six hundred seventy-one million, five hundred fifty-five thousand, ten".