656016117 has 4 divisors (see below), whose sum is σ = 874688160. Its totient is φ = 437344076.

The previous prime is 656016029. The next prime is 656016133. The reversal of 656016117 is 711610656.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 656016117 - 2⁸ = 656015861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656016187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109336017 + ... + 109336022.

It is an arithmetic number, because the mean of its divisors is an integer number (218672040).

Almost surely, 2^656016117 is an apocalyptic number.

It is an amenable number.

656016117 is a deficient number, since it is larger than the sum of its proper divisors (218672043).

656016117 is a wasteful number, since it uses less digits than its factorization.

656016117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218672042.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 656016117 is about 25612.8115793639. The cubic root of 656016117 is about 868.9034129499.

The spelling of 656016117 in words is "six hundred fifty-six million, sixteen thousand, one hundred seventeen".