157499203212 has 216 divisors, whose sum is σ = 473531385600. Its totient is φ = 43913840256.

The previous prime is 157499203171. The next prime is 157499203237. The reversal of 157499203212 is 212302994751.

157499203212 is a `hidden beast` number, since 157 + 499 + 2 + 0 + 3 + 2 + 1 + 2 = 666.

It is a super-2 number, since 2×157499203212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2629089 + ... + 2688327.

Almost surely, 2^157499203212 is an apocalyptic number.

157499203212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157499203212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236765692800).

157499203212 is an abundant number, since it is smaller than the sum of its proper divisors (316032182388).

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

157499203212 is a wasteful number, since it uses less digits than its factorization.

157499203212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59317 (or 59299 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 157499203212 in words is "one hundred fifty-seven billion, four hundred ninety-nine million, two hundred three thousand, two hundred twelve".