15525915525120 has 2880 divisors, whose sum is σ = 71053117761024. Its totient is φ = 2848519618560.

The previous prime is 15525915525119. The next prime is 15525915525137. The reversal of 15525915525120 is 2152551952551.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 15525915525120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 675039805429 + ... + 675039805451.

Almost surely, 2^{15525915525120} is an apocalyptic number.

15525915525120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15525915525120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35526558880512).

15525915525120 is an abundant number, since it is smaller than the sum of its proper divisors (55527202235904).

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

15525915525120 is an frugal number, since it uses more digits than its factorization.

15525915525120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 1125000, while the sum is 48.

The spelling of 15525915525120 in words is "fifteen trillion, five hundred twenty-five billion, nine hundred fifteen million, five hundred twenty-five thousand, one hundred twenty".