15115643123163 has 32 divisors (see below), whose sum is σ = 23152650336000. Its totient is φ = 8675432438400.

The previous prime is 15115643123131. The next prime is 15115643123221. The reversal of 15115643123163 is 36132134651151.

It is not a de Polignac number, because 15115643123163 - 2⁵ = 15115643123131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15115643123123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3130668 + ... + 6327113.

It is an arithmetic number, because the mean of its divisors is an integer number (723520323000).

Almost surely, 2^{15115643123163} is an apocalyptic number.

15115643123163 is a deficient number, since it is larger than the sum of its proper divisors (8037007212837).

15115643123163 is a wasteful number, since it uses less digits than its factorization.

15115643123163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9460363.

The product of its digits is 194400, while the sum is 42.

The spelling of 15115643123163 in words is "fifteen trillion, one hundred fifteen billion, six hundred forty-three million, one hundred twenty-three thousand, one hundred sixty-three".