157585662018 has 24 divisors (see below), whose sum is σ = 342402854508. Its totient is φ = 52379745792.

The previous prime is 157585661999. The next prime is 157585662019. The reversal of 157585662018 is 810266585751.

157585662018 is a `hidden beast` number, since 1 + 5 + 7 + 5 + 8 + 5 + 6 + 620 + 1 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 150580474209 + 7005187809 = 388047^2 + 83697^2 .

It is not an unprimeable number, because it can be changed into a prime (157585662019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12394155 + ... + 12406862.

Almost surely, 2^157585662018 is an apocalyptic number.

157585662018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

157585662018 is an abundant number, since it is smaller than the sum of its proper divisors (184817192490).

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

157585662018 is a wasteful number, since it uses less digits than its factorization.

157585662018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24801378 (or 24801375 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 54.

The spelling of 157585662018 in words is "one hundred fifty-seven billion, five hundred eighty-five million, six hundred sixty-two thousand, eighteen".