30157540272 has 160 divisors (see below), whose sum is σ = 90004288960. Its totient is φ = 9780403968.

The previous prime is 30157540181. The next prime is 30157540279. The reversal of 30157540272 is 27204575103.

30157540272 is a `hidden beast` number, since 30 + 15 + 7 + 540 + 2 + 72 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (30157540279) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1283058 + ... + 1306350.

It is an arithmetic number, because the mean of its divisors is an integer number (562526806).

Almost surely, 2^30157540272 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 30157540272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45002144480).

30157540272 is an abundant number, since it is smaller than the sum of its proper divisors (59846748688).

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

30157540272 is an equidigital number, since it uses as much as digits as its factorization.

30157540272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23359 (or 23335 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The spelling of 30157540272 in words is "thirty billion, one hundred fifty-seven million, five hundred forty thousand, two hundred seventy-two".