13515315052144 has 40 divisors (see below), whose sum is σ = 26487183060000. Its totient is φ = 6679953325056.

The previous prime is 13515315052091. The next prime is 13515315052163. The reversal of 13515315052144 is 44125051351531.

It is a junction number, because it is equal to n+sod(n) for n = 13515315052097 and 13515315052106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4107957 + ... + 6626155.

It is an arithmetic number, because the mean of its divisors is an integer number (662179576500).

Almost surely, 2^{13515315052144} is an apocalyptic number.

It is an amenable number.

13515315052144 is a deficient number, since it is larger than the sum of its proper divisors (12971868007856).

13515315052144 is a wasteful number, since it uses less digits than its factorization.

13515315052144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522065 (or 2522059 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 13515315052144 in words is "thirteen trillion, five hundred fifteen billion, three hundred fifteen million, fifty-two thousand, one hundred forty-four".