30157233561 has 72 divisors (see below), whose sum is σ = 56745049920. Its totient is φ = 15069794688.

The previous prime is 30157233499. The next prime is 30157233607. The reversal of 30157233561 is 16533275103.

30157233561 is a `hidden beast` number, since 3 + 0 + 1 + 572 + 33 + 56 + 1 = 666.

It is not a de Polignac number, because 30157233561 - 2²³ = 30148844953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30157233461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 127755 + ... + 276831.

Almost surely, 2^30157233561 is an apocalyptic number.

It is an amenable number.

30157233561 is a deficient number, since it is larger than the sum of its proper divisors (26587816359).

30157233561 is a wasteful number, since it uses less digits than its factorization.

30157233561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149135 (or 149119 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The spelling of 30157233561 in words is "thirty billion, one hundred fifty-seven million, two hundred thirty-three thousand, five hundred sixty-one".