2015316314550 has 144 divisors (see below), whose sum is σ = 6750524581632. Its totient is φ = 418767019200.

The previous prime is 2015316314549. The next prime is 2015316314587. The reversal of 2015316314550 is 554136135102.

2015316314550 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 31 + 63 + 14 + 550 = 666.

It is a super-2 number, since 2×2015316314550² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 29046394 + ... + 29115693.

It is an arithmetic number, because the mean of its divisors is an integer number (46878642928).

Almost surely, 2^{2015316314550} is an apocalyptic number.

2015316314550 is an abundant number, since it is smaller than the sum of its proper divisors (4735208267082).

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

2015316314550 is a wasteful number, since it uses less digits than its factorization.

2015316314550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58162123 (or 58162115 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 2015316314550 in words is "two trillion, fifteen billion, three hundred sixteen million, three hundred fourteen thousand, five hundred fifty".