315556441235220 has 48 divisors (see below), whose sum is σ = 888136056400320. Its totient is φ = 83712382334976.

The previous prime is 315556441235179. The next prime is 315556441235227. The reversal of 315556441235220 is 22532144655513.

It is a self number, because there is not a number n which added to its sum of digits gives 315556441235220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315556441235227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13625050650 + ... + 13625073809.

It is an arithmetic number, because the mean of its divisors is an integer number (18502834508340).

Almost surely, 2^{315556441235220} is an apocalyptic number.

315556441235220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315556441235220 is an abundant number, since it is smaller than the sum of its proper divisors (572579615165100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315556441235220 is a wasteful number, since it uses less digits than its factorization.

315556441235220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27250124664 (or 27250124662 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 48.

The spelling of 315556441235220 in words is "three hundred fifteen trillion, five hundred fifty-six billion, four hundred forty-one million, two hundred thirty-five thousand, two hundred twenty".