158887845918 has 32 divisors (see below), whose sum is σ = 355453812000. Its totient is φ = 52607158848.

The previous prime is 158887845913. The next prime is 158887845947. The reversal of 158887845918 is 819548788851.

158887845918 is a `hidden beast` number, since 1 + 5 + 88 + 87 + 8 + 459 + 18 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158887845913) 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, 9865671 + ... + 9881762.

It is an arithmetic number, because the mean of its divisors is an integer number (11107931625).

Almost surely, 2^158887845918 is an apocalyptic number.

158887845918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

158887845918 is an abundant number, since it is smaller than the sum of its proper divisors (196565966082).

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

158887845918 is a wasteful number, since it uses less digits than its factorization.

158887845918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19747593 (or 19747587 counting only the distinct ones).

The product of its digits is 206438400, while the sum is 72.

The spelling of 158887845918 in words is "one hundred fifty-eight billion, eight hundred eighty-seven million, eight hundred forty-five thousand, nine hundred eighteen".