9120025566 has 24 divisors (see below), whose sum is σ = 19766223984. Its totient is φ = 3039059520.

The previous prime is 9120025553. The next prime is 9120025591. The reversal of 9120025566 is 6655200219.

9120025566 is a `hidden beast` number, since 91 + 2 + 0 + 0 + 2 + 5 + 566 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 9120025566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18571 + ... + 136326.

It is an arithmetic number, because the mean of its divisors is an integer number (823592666).

Almost surely, 2^9120025566 is an apocalyptic number.

9120025566 is an abundant number, since it is smaller than the sum of its proper divisors (10646198418).

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

9120025566 is a wasteful number, since it uses less digits than its factorization.

9120025566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158176 (or 158173 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 9120025566 is about 95498.8249456505. The cubic root of 9120025566 is about 2089.2898059357.

The spelling of 9120025566 in words is "nine billion, one hundred twenty million, twenty-five thousand, five hundred sixty-six".