157729566 has 16 divisors (see below), whose sum is σ = 318712464. Its totient is φ = 52034304.

The previous prime is 157729543. The next prime is 157729573. The reversal of 157729566 is 665927751.

157729566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134925 + ... + 136088.

It is an arithmetic number, because the mean of its divisors is an integer number (19919529).

Almost surely, 2^157729566 is an apocalyptic number.

157729566 is an abundant number, since it is smaller than the sum of its proper divisors (160982898).

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

157729566 is a wasteful number, since it uses less digits than its factorization.

157729566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271115.

The product of its digits is 793800, while the sum is 48.

The square root of 157729566 is about 12559.0431960401. The cubic root of 157729566 is about 540.3034028872.

The spelling of 157729566 in words is "one hundred fifty-seven million, seven hundred twenty-nine thousand, five hundred sixty-six".