656155550000 has 60 divisors (see below), whose sum is σ = 1589025139632. Its totient is φ = 262462200000.

The previous prime is 656155549997. The next prime is 656155550009. The reversal of 656155550000 is 55551656.

It is not an unprimeable number, because it can be changed into a prime (656155550009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6511556 + ... + 6611555.

Almost surely, 2^656155550000 is an apocalyptic number.

It is an amenable number.

656155550000 is an abundant number, since it is smaller than the sum of its proper divisors (932869589632).

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

656155550000 is an equidigital number, since it uses as much as digits as its factorization.

656155550000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13123144 (or 13123118 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 656155550000 in words is "six hundred fifty-six billion, one hundred fifty-five million, five hundred fifty thousand".