316808550551 has 4 divisors (see below), whose sum is σ = 317145223704. Its totient is φ = 316471877400.

The previous prime is 316808550523. The next prime is 316808550577. The reversal of 316808550551 is 155055808613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155055808613 = 6961 ⋅22274933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316808550551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 316808550496 and 316808550505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316808556551) 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, 168335165 + ... + 168337046.

It is an arithmetic number, because the mean of its divisors is an integer number (79286305926).

Almost surely, 2^316808550551 is an apocalyptic number.

316808550551 is a deficient number, since it is larger than the sum of its proper divisors (336673153).

316808550551 is an equidigital number, since it uses as much as digits as its factorization.

316808550551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336673152.

The product of its (nonzero) digits is 720000, while the sum is 47.

The spelling of 316808550551 in words is "three hundred sixteen billion, eight hundred eight million, five hundred fifty thousand, five hundred fifty-one".