656651016 has 64 divisors (see below), whose sum is σ = 2084611200. Its totient is φ = 187614144.

The previous prime is 656651003. The next prime is 656651033. The reversal of 656651016 is 610156656.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215635 + ... + 218658.

It is an arithmetic number, because the mean of its divisors is an integer number (32572050).

Almost surely, 2^656651016 is an apocalyptic number.

It is an amenable number.

656651016 is an abundant number, since it is smaller than the sum of its proper divisors (1427960184).

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

656651016 is a wasteful number, since it uses less digits than its factorization.

656651016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434315 (or 434305 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 656651016 is about 25625.2027504174. The cubic root of 656651016 is about 869.1836337250.

The spelling of 656651016 in words is "six hundred fifty-six million, six hundred fifty-one thousand, sixteen".