15121392646880 has 96 divisors (see below), whose sum is σ = 38853226970208. Its totient is φ = 5528003328000.

The previous prime is 15121392646733. The next prime is 15121392646901. The reversal of 15121392646880 is 8864629312151.

15121392646880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15121392646880² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35779526 + ... + 36199685.

It is an arithmetic number, because the mean of its divisors is an integer number (404721114273).

Almost surely, 2^{15121392646880} is an apocalyptic number.

15121392646880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15121392646880 is an abundant number, since it is smaller than the sum of its proper divisors (23731834323328).

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

15121392646880 is a wasteful number, since it uses less digits than its factorization.

15121392646880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71979340 (or 71979332 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 15121392646880 in words is "fifteen trillion, one hundred twenty-one billion, three hundred ninety-two million, six hundred forty-six thousand, eight hundred eighty".