15500241315378 has 48 divisors (see below), whose sum is σ = 34013458586016. Its totient is φ = 5100745921920.

The previous prime is 15500241315353. The next prime is 15500241315401. The reversal of 15500241315378 is 87351314200551.

15500241315378 is a `hidden beast` number, since 1 + 5 + 5 + 0 + 0 + 241 + 31 + 5 + 378 = 666.

It is a super-2 number, since 2×15500241315378² (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 23 ways as a sum of consecutive naturals, for example, 1778200 + ... + 5844867.

It is an arithmetic number, because the mean of its divisors is an integer number (708613720542).

Almost surely, 2^{15500241315378} is an apocalyptic number.

15500241315378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

15500241315378 is an abundant number, since it is smaller than the sum of its proper divisors (18513217270638).

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

15500241315378 is a wasteful number, since it uses less digits than its factorization.

15500241315378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7624519 (or 7624516 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 15500241315378 in words is "fifteen trillion, five hundred billion, two hundred forty-one million, three hundred fifteen thousand, three hundred seventy-eight".