315157720860 has 240 divisors, whose sum is σ = 1008528998400. Its totient is φ = 82366035840.

The previous prime is 315157720859. The next prime is 315157720903. The reversal of 315157720860 is 68027751513.

It is a happy number.

315157720860 is a `hidden beast` number, since 3 + 1 + 51 + 577 + 20 + 8 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 21592165 + ... + 21606755.

It is an arithmetic number, because the mean of its divisors is an integer number (4202204160).

Almost surely, 2^315157720860 is an apocalyptic number.

315157720860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315157720860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504264499200).

315157720860 is an abundant number, since it is smaller than the sum of its proper divisors (693371277540).

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

315157720860 is a wasteful number, since it uses less digits than its factorization.

315157720860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14878 (or 14867 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 315157720860 in words is "three hundred fifteen billion, one hundred fifty-seven million, seven hundred twenty thousand, eight hundred sixty".