316806470506 has 4 divisors (see below), whose sum is σ = 475209705762. Its totient is φ = 158403235252.

The previous prime is 316806470503. The next prime is 316806470521. The reversal of 316806470506 is 605074608613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 605074608613 = 257 ⋅2354375909.

It can be written as a sum of positive squares in only one way, i.e., 206851226481 + 109955244025 = 454809^2 + 331595^2 .

It is not an unprimeable number, because it can be changed into a prime (316806470503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79201617625 + ... + 79201617628.

Almost surely, 2^316806470506 is an apocalyptic number.

316806470506 is a deficient number, since it is larger than the sum of its proper divisors (158403235256).

316806470506 is a wasteful number, since it uses less digits than its factorization.

316806470506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158403235255.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 316806470506 in words is "three hundred sixteen billion, eight hundred six million, four hundred seventy thousand, five hundred six".