316556405465 has 4 divisors (see below), whose sum is σ = 379867686564. Its totient is φ = 253245124368.

The previous prime is 316556405461. The next prime is 316556405483. The reversal of 316556405465 is 564504655613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 564504655613 = 83 ⋅6801260911.

It can be written as a sum of positive squares in 2 ways, for example, as 226906464409 + 89649941056 = 476347^2 + 299416^2 .

It is a cyclic number.

It is not a de Polignac number, because 316556405465 - 2² = 316556405461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316556405461) 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, 31655640542 + ... + 31655640551.

It is an arithmetic number, because the mean of its divisors is an integer number (94966921641).

Almost surely, 2^316556405465 is an apocalyptic number.

It is an amenable number.

316556405465 is a deficient number, since it is larger than the sum of its proper divisors (63311281099).

316556405465 is an equidigital number, since it uses as much as digits as its factorization.

316556405465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63311281098.

The product of its (nonzero) digits is 6480000, while the sum is 50.

The spelling of 316556405465 in words is "three hundred sixteen billion, five hundred fifty-six million, four hundred five thousand, four hundred sixty-five".