315656940625 has 24 divisors (see below), whose sum is σ = 424895664312. Its totient is φ = 233100480000.

The previous prime is 315656940601. The next prime is 315656940631. The reversal of 315656940625 is 526049656513.

It can be written as a sum of positive squares in 12 ways, for example, as 312157981521 + 3498959104 = 558711^2 + 59152^2 .

It is not a de Polignac number, because 315656940625 - 2⁷ = 315656940497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3844384 + ... + 3925633.

It is an arithmetic number, because the mean of its divisors is an integer number (17703986013).

Almost surely, 2^315656940625 is an apocalyptic number.

It is an amenable number.

315656940625 is a deficient number, since it is larger than the sum of its proper divisors (109238723687).

315656940625 is an frugal number, since it uses more digits than its factorization.

315656940625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770055 (or 7770035 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 52.

The spelling of 315656940625 in words is "three hundred fifteen billion, six hundred fifty-six million, nine hundred forty thousand, six hundred twenty-five".