315865266660447 has 64 divisors (see below), whose sum is σ = 511451622334464. Its totient is φ = 169558668472320.

The previous prime is 315865266660443. The next prime is 315865266660481. The reversal of 315865266660447 is 744066662568513.

It is not a de Polignac number, because 315865266660447 - 2² = 315865266660443 is a prime.

It is a super-2 number, since 2×315865266660447² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315865266660443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4712958 + ... + 25572299.

It is an arithmetic number, because the mean of its divisors is an integer number (7991431598976).

Almost surely, 2^{315865266660447} is an apocalyptic number.

315865266660447 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

315865266660447 is a deficient number, since it is larger than the sum of its proper divisors (195586355674017).

315865266660447 is a wasteful number, since it uses less digits than its factorization.

315865266660447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30285768.

The product of its (nonzero) digits is 1045094400, while the sum is 69.

The spelling of 315865266660447 in words is "three hundred fifteen trillion, eight hundred sixty-five billion, two hundred sixty-six million, six hundred sixty thousand, four hundred forty-seven".