56716716013 has 4 divisors (see below), whose sum is σ = 56717506368. Its totient is φ = 56715925660.

The previous prime is 56716715999. The next prime is 56716716031. The reversal of 56716716013 is 31061761765.

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 a de Polignac number, because none of the positive numbers 2^k-56716716013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56716716053) 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, 275443 + ... + 435088.

It is an arithmetic number, because the mean of its divisors is an integer number (14179376592).

Almost surely, 2^56716716013 is an apocalyptic number.

It is an amenable number.

56716716013 is a deficient number, since it is larger than the sum of its proper divisors (790355).

56716716013 is an equidigital number, since it uses as much as digits as its factorization.

56716716013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790354.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 56716716013 in words is "fifty-six billion, seven hundred sixteen million, seven hundred sixteen thousand, thirteen".