15345112515504 has 160 divisors (see below), whose sum is σ = 42273934771200. Its totient is φ = 4782470584320.

The previous prime is 15345112515497. The next prime is 15345112515517. The reversal of 15345112515504 is 40551521154351.

It is a super-2 number, since 2×15345112515504² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175825542 + ... + 175912794.

It is an arithmetic number, because the mean of its divisors is an integer number (264212092320).

Almost surely, 2^{15345112515504} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15345112515504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21136967385600).

15345112515504 is an abundant number, since it is smaller than the sum of its proper divisors (26928822255696).

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

15345112515504 is a wasteful number, since it uses less digits than its factorization.

15345112515504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89803 (or 89797 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 42.

Adding to 15345112515504 its reverse (40551521154351), we get a palindrome (55896633669855).

The spelling of 15345112515504 in words is "fifteen trillion, three hundred forty-five billion, one hundred twelve million, five hundred fifteen thousand, five hundred four".