315751640542155 has 40 divisors (see below), whose sum is σ = 590623358558112. Its totient is φ = 161079097779072.

The previous prime is 315751640542153. The next prime is 315751640542213. The reversal of 315751640542155 is 551245046157513.

315751640542155 is a `hidden beast` number, since 3 + 1 + 5 + 7 + 5 + 1 + 6 + 40 + 542 + 1 + 55 = 666.

It is not a de Polignac number, because 315751640542155 - 2¹ = 315751640542153 is a prime.

It is a super-2 number, since 2×315751640542155² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (315751640542153) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16948548954 + ... + 16948567583.

Almost surely, 2^{315751640542155} is an apocalyptic number.

315751640542155 is a deficient number, since it is larger than the sum of its proper divisors (274871718015957).

315751640542155 is a wasteful number, since it uses less digits than its factorization.

315751640542155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33897116577 (or 33897116568 counting only the distinct ones).

The product of its (nonzero) digits is 12600000, while the sum is 54.

Adding to 315751640542155 its reverse (551245046157513), we get a palindrome (866996686699668).

The spelling of 315751640542155 in words is "three hundred fifteen trillion, seven hundred fifty-one billion, six hundred forty million, five hundred forty-two thousand, one hundred fifty-five".