20552201872 has 20 divisors (see below), whose sum is σ = 40380736896. Its totient is φ = 10131366560.

The previous prime is 20552201863. The next prime is 20552201911. The reversal of 20552201872 is 27810225502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9044728 + ... + 9046999.

Almost surely, 2^20552201872 is an apocalyptic number.

It is an amenable number.

20552201872 is a deficient number, since it is larger than the sum of its proper divisors (19828535024).

20552201872 is a wasteful number, since it uses less digits than its factorization.

20552201872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18091806 (or 18091800 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The spelling of 20552201872 in words is "twenty billion, five hundred fifty-two million, two hundred one thousand, eight hundred seventy-two".