21066275088 has 60 divisors (see below), whose sum is σ = 59120680320. Its totient is φ = 7002514368.

The previous prime is 21066275057. The next prime is 21066275123. The reversal of 21066275088 is 88057266012.

21066275088 is a `hidden beast` number, since 2 + 10 + 6 + 627 + 5 + 0 + 8 + 8 = 666.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 152056 + ... + 255447.

It is an arithmetic number, because the mean of its divisors is an integer number (985344672).

Almost surely, 2^21066275088 is an apocalyptic number.

It is an amenable number.

21066275088 is an abundant number, since it is smaller than the sum of its proper divisors (38054405232).

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

21066275088 is a wasteful number, since it uses less digits than its factorization.

21066275088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407876 (or 407867 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 21066275088 in words is "twenty-one billion, sixty-six million, two hundred seventy-five thousand, eighty-eight".