15051116002491 has 64 divisors (see below), whose sum is σ = 22777588944000. Its totient is φ = 9820489807872.

The previous prime is 15051116002487. The next prime is 15051116002529. The reversal of 15051116002491 is 19420061115051.

It is a happy number.

15051116002491 is a `hidden beast` number, since 1 + 5 + 0 + 5 + 1 + 1 + 1 + 600 + 2 + 49 + 1 = 666.

It is not a de Polignac number, because 15051116002491 - 2² = 15051116002487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15051116002421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 303345601 + ... + 303395213.

It is an arithmetic number, because the mean of its divisors is an integer number (355899827250).

Almost surely, 2^{15051116002491} is an apocalyptic number.

15051116002491 is a deficient number, since it is larger than the sum of its proper divisors (7726472941509).

15051116002491 is a wasteful number, since it uses less digits than its factorization.

15051116002491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50877 (or 50871 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 36.

The spelling of 15051116002491 in words is "fifteen trillion, fifty-one billion, one hundred sixteen million, two thousand, four hundred ninety-one".