30504156560 has 20 divisors (see below), whose sum is σ = 70922164188. Its totient is φ = 12201662592.

The previous prime is 30504156559. The next prime is 30504156563. The reversal of 30504156560 is 6565140503.

It can be written as a sum of positive squares in 2 ways, for example, as 8472097936 + 22032058624 = 92044^2 + 148432^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 30504156560.

It is not an unprimeable number, because it can be changed into a prime (30504156563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190650899 + ... + 190651058.

Almost surely, 2^30504156560 is an apocalyptic number.

It is an amenable number.

30504156560 is an abundant number, since it is smaller than the sum of its proper divisors (40418007628).

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

30504156560 is a wasteful number, since it uses less digits than its factorization.

30504156560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381301970 (or 381301964 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 30504156560 in words is "thirty billion, five hundred four million, one hundred fifty-six thousand, five hundred sixty".