315534654435021 has 32 divisors (see below), whose sum is σ = 481098736355328. Its totient is φ = 180199031348160.

The previous prime is 315534654434927. The next prime is 315534654435029. The reversal of 315534654435021 is 120534456435513.

It is not a de Polignac number, because 315534654435021 - 2¹³ = 315534654426829 is a prime.

It is a super-2 number, since 2×315534654435021² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315534654435029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320045736 + ... + 321030126.

It is an arithmetic number, because the mean of its divisors is an integer number (15034335511104).

Almost surely, 2^{315534654435021} is an apocalyptic number.

It is an amenable number.

315534654435021 is a deficient number, since it is larger than the sum of its proper divisors (165564081920307).

315534654435021 is a wasteful number, since it uses less digits than its factorization.

315534654435021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993401.

The product of its (nonzero) digits is 12960000, while the sum is 51.

The spelling of 315534654435021 in words is "three hundred fifteen trillion, five hundred thirty-four billion, six hundred fifty-four million, four hundred thirty-five thousand, twenty-one".