15990959013120 has 864 divisors, whose sum is σ = 70291584190464. Its totient is φ = 3265073971200.

The previous prime is 15990959013097. The next prime is 15990959013137. The reversal of 15990959013120 is 2131095909951.

15990959013120 is a `hidden beast` number, since 15 + 9 + 9 + 0 + 9 + 590 + 1 + 31 + 2 + 0 = 666.

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 95 ways as a sum of consecutive naturals, for example, 32251890 + ... + 32743950.

Almost surely, 2^{15990959013120} is an apocalyptic number.

15990959013120 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 15990959013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35145792095232).

15990959013120 is an abundant number, since it is smaller than the sum of its proper divisors (54300625177344).

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

15990959013120 is a wasteful number, since it uses less digits than its factorization.

15990959013120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492139 (or 492122 counting only the distinct ones).

The product of its (nonzero) digits is 984150, while the sum is 54.

The spelling of 15990959013120 in words is "fifteen trillion, nine hundred ninety billion, nine hundred fifty-nine million, thirteen thousand, one hundred twenty".