157118198568 has 64 divisors (see below), whose sum is σ = 417128097600. Its totient is φ = 49177175040.

The previous prime is 157118198561. The next prime is 157118198581. The reversal of 157118198568 is 865891811751.

It is a super-2 number, since 2×157118198568² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157118198561) 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, 1473063 + ... + 1576118.

It is an arithmetic number, because the mean of its divisors is an integer number (6517626525).

Almost surely, 2^157118198568 is an apocalyptic number.

It is an amenable number.

157118198568 is an abundant number, since it is smaller than the sum of its proper divisors (260009899032).

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

157118198568 is a wasteful number, since it uses less digits than its factorization.

157118198568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049322 (or 3049318 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 60.

The spelling of 157118198568 in words is "one hundred fifty-seven billion, one hundred eighteen million, one hundred ninety-eight thousand, five hundred sixty-eight".