716670788551 has 4 divisors (see below), whose sum is σ = 716792947272. Its totient is φ = 716548629832.

The previous prime is 716670788521. The next prime is 716670788557. The reversal of 716670788551 is 155887076617.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 716670788551 - 2⁷ = 716670788423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 716670788551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716670788557) 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, 61070560 + ... + 61082293.

It is an arithmetic number, because the mean of its divisors is an integer number (179198236818).

Almost surely, 2^716670788551 is an apocalyptic number.

716670788551 is a deficient number, since it is larger than the sum of its proper divisors (122158721).

716670788551 is a wasteful number, since it uses less digits than its factorization.

716670788551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122158720.

The product of its (nonzero) digits is 19756800, while the sum is 61.

The spelling of 716670788551 in words is "seven hundred sixteen billion, six hundred seventy million, seven hundred eighty-eight thousand, five hundred fifty-one".