716477511551 has 4 divisors (see below), whose sum is σ = 720114453432. Its totient is φ = 712840569672.

The previous prime is 716477511493. The next prime is 716477511559. The reversal of 716477511551 is 155115774617.

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 716477511551 - 2¹⁸ = 716477249407 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 716477511551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716477511559) 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, 1818470645 + ... + 1818471038.

It is an arithmetic number, because the mean of its divisors is an integer number (180028613358).

Almost surely, 2^716477511551 is an apocalyptic number.

716477511551 is a deficient number, since it is larger than the sum of its proper divisors (3636941881).

716477511551 is a wasteful number, since it uses less digits than its factorization.

716477511551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3636941880.

The product of its digits is 1029000, while the sum is 50.

The spelling of 716477511551 in words is "seven hundred sixteen billion, four hundred seventy-seven million, five hundred eleven thousand, five hundred fifty-one".