157699872 has 120 divisors (see below), whose sum is σ = 506045232. Its totient is φ = 47779200.

The previous prime is 157699859. The next prime is 157699897. The reversal of 157699872 is 278996751.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25747 + ... + 31277.

Almost surely, 2^157699872 is an apocalyptic number.

157699872 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 157699872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253022616).

157699872 is an abundant number, since it is smaller than the sum of its proper divisors (348345360).

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

157699872 is a wasteful number, since it uses less digits than its factorization.

157699872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5564 (or 5547 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 157699872 is about 12557.8609643522. The cubic root of 157699872 is about 540.2694951117.

The spelling of 157699872 in words is "one hundred fifty-seven million, six hundred ninety-nine thousand, eight hundred seventy-two".