15730157157 has 24 divisors (see below), whose sum is σ = 24775640928. Its totient is φ = 8800084800.

The previous prime is 15730157153. The next prime is 15730157159. The reversal of 15730157157 is 75175103751.

It is not a de Polignac number, because 15730157157 - 2² = 15730157153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15730157153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1404694 + ... + 1415847.

It is an arithmetic number, because the mean of its divisors is an integer number (1032318372).

Almost surely, 2^15730157157 is an apocalyptic number.

It is an amenable number.

15730157157 is a deficient number, since it is larger than the sum of its proper divisors (9045483771).

15730157157 is a wasteful number, since it uses less digits than its factorization.

15730157157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820581 (or 2820568 counting only the distinct ones).

The product of its (nonzero) digits is 128625, while the sum is 42.

The spelling of 15730157157 in words is "fifteen billion, seven hundred thirty million, one hundred fifty-seven thousand, one hundred fifty-seven".