2157299534115 has 128 divisors (see below), whose sum is σ = 4431330892800. Its totient is φ = 984132126720.

The previous prime is 2157299534077. The next prime is 2157299534129. The reversal of 2157299534115 is 5114359927512.

2157299534115 is a `hidden beast` number, since 2 + 1 + 5 + 7 + 2 + 99 + 534 + 1 + 15 = 666.

It is not a de Polignac number, because 2157299534115 - 2¹⁵ = 2157299501347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 95389549 + ... + 95412161.

It is an arithmetic number, because the mean of its divisors is an integer number (34619772600).

Almost surely, 2^{2157299534115} is an apocalyptic number.

2157299534115 is an abundant number, since it is smaller than the sum of its proper divisors (2274031358685).

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

2157299534115 is a wasteful number, since it uses less digits than its factorization.

2157299534115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26434 (or 26428 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 54.

The spelling of 2157299534115 in words is "two trillion, one hundred fifty-seven billion, two hundred ninety-nine million, five hundred thirty-four thousand, one hundred fifteen".