15506616165152 has 48 divisors (see below), whose sum is σ = 34893911707200. Its totient is φ = 6644925911808.

The previous prime is 15506616165149. The next prime is 15506616165193. The reversal of 15506616165152 is 25156161660551.

It is a self number, because there is not a number n which added to its sum of digits gives 15506616165152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2045402 + ... + 5932697.

It is an arithmetic number, because the mean of its divisors is an integer number (726956493900).

Almost surely, 2^{15506616165152} is an apocalyptic number.

It is an amenable number.

15506616165152 is an abundant number, since it is smaller than the sum of its proper divisors (19387295542048).

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

15506616165152 is an equidigital number, since it uses as much as digits as its factorization.

15506616165152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7986793 (or 7986785 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 50.

The spelling of 15506616165152 in words is "fifteen trillion, five hundred six billion, six hundred sixteen million, one hundred sixty-five thousand, one hundred fifty-two".