30564220920 has 32 divisors (see below), whose sum is σ = 91692663120. Its totient is φ = 8150458880.

The previous prime is 30564220847. The next prime is 30564220969. The reversal of 30564220920 is 2902246503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127350801 + ... + 127351040.

Almost surely, 2^30564220920 is an apocalyptic number.

30564220920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30564220920 is an abundant number, since it is smaller than the sum of its proper divisors (61128442200).

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

30564220920 is a wasteful number, since it uses less digits than its factorization.

30564220920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254701855 (or 254701851 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 30564220920 in words is "thirty billion, five hundred sixty-four million, two hundred twenty thousand, nine hundred twenty".