13515534542220 has 96 divisors (see below), whose sum is σ = 40136258102976. Its totient is φ = 3386489856000.

The previous prime is 13515534542207. The next prime is 13515534542231. The reversal of 13515534542220 is 2224543551531.

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 31 ways as a sum of consecutive naturals, for example, 10410711 + ... + 11636750.

It is an arithmetic number, because the mean of its divisors is an integer number (418086021906).

Almost surely, 2^{13515534542220} is an apocalyptic number.

13515534542220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13515534542220 is an abundant number, since it is smaller than the sum of its proper divisors (26620723560756).

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

13515534542220 is a wasteful number, since it uses less digits than its factorization.

13515534542220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22048091 (or 22048089 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 13515534542220 in words is "thirteen trillion, five hundred fifteen billion, five hundred thirty-four million, five hundred forty-two thousand, two hundred twenty".