11518573157 has 16 divisors (see below), whose sum is σ = 14444196480. Its totient is φ = 8941637952.

The previous prime is 11518573153. The next prime is 11518573163. The reversal of 11518573157 is 75137581511.

It is not a de Polignac number, because 11518573157 - 2² = 11518573153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11518573153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1189307 + ... + 1198952.

It is an arithmetic number, because the mean of its divisors is an integer number (902762280).

Almost surely, 2^11518573157 is an apocalyptic number.

It is an amenable number.

11518573157 is a deficient number, since it is larger than the sum of its proper divisors (2925623323).

11518573157 is a wasteful number, since it uses less digits than its factorization.

11518573157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388332.

The product of its digits is 147000, while the sum is 44.

The spelling of 11518573157 in words is "eleven billion, five hundred eighteen million, five hundred seventy-three thousand, one hundred fifty-seven".