15157134720 has 1536 divisors, whose sum is σ = 72084297600. Its totient is φ = 3009871872.

The previous prime is 15157134701. The next prime is 15157134721. The reversal of 15157134720 is 2743175151.

15157134720 is a `hidden beast` number, since 1 + 51 + 571 + 34 + 7 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15157134721) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 891596152 + ... + 891596168.

Almost surely, 2^15157134720 is an apocalyptic number.

15157134720 is a gapful number since it is divisible by the number (10) 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 15157134720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36042148800).

15157134720 is an abundant number, since it is smaller than the sum of its proper divisors (56927162880).

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

15157134720 is an equidigital number, since it uses as much as digits as its factorization.

15157134720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The spelling of 15157134720 in words is "fifteen billion, one hundred fifty-seven million, one hundred thirty-four thousand, seven hundred twenty".