157865568 has 96 divisors (see below), whose sum is σ = 475663104. Its totient is φ = 44908032.

The previous prime is 157865567. The next prime is 157865573. The reversal of 157865568 is 865568751.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 157865568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157865567) 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, 232846 + ... + 233522.

It is an arithmetic number, because the mean of its divisors is an integer number (4954824).

Almost surely, 2^157865568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157865568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237831552).

157865568 is an abundant number, since it is smaller than the sum of its proper divisors (317797536).

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

157865568 is a wasteful number, since it uses less digits than its factorization.

157865568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1036 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 51.

The square root of 157865568 is about 12564.4565342079. The cubic root of 157865568 is about 540.4586501148.

The spelling of 157865568 in words is "one hundred fifty-seven million, eight hundred sixty-five thousand, five hundred sixty-eight".