656099313 has 16 divisors (see below), whose sum is σ = 888584256. Its totient is φ = 430545920.

The previous prime is 656099251. The next prime is 656099329. The reversal of 656099313 is 313990656.

It is a cyclic number.

It is not a de Polignac number, because 656099313 - 2¹⁴ = 656082929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (656099813) 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 15 ways as a sum of consecutive naturals, for example, 65281 + ... + 74657.

It is an arithmetic number, because the mean of its divisors is an integer number (55536516).

Almost surely, 2^656099313 is an apocalyptic number.

It is an amenable number.

656099313 is a deficient number, since it is larger than the sum of its proper divisors (232484943).

656099313 is a wasteful number, since it uses less digits than its factorization.

656099313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9744.

The product of its (nonzero) digits is 131220, while the sum is 42.

The square root of 656099313 is about 25614.4356369607. The cubic root of 656099313 is about 868.9401428568.

The spelling of 656099313 in words is "six hundred fifty-six million, ninety-nine thousand, three hundred thirteen".