20973922266 has 16 divisors (see below), whose sum is σ = 45761285088. Its totient is φ = 6355734000.

The previous prime is 20973922181. The next prime is 20973922303. The reversal of 20973922266 is 66222937902.

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 7 ways as a sum of consecutive naturals, for example, 158893285 + ... + 158893416.

It is an arithmetic number, because the mean of its divisors is an integer number (2860080318).

Almost surely, 2^20973922266 is an apocalyptic number.

20973922266 is an abundant number, since it is smaller than the sum of its proper divisors (24787362822).

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

20973922266 is a wasteful number, since it uses less digits than its factorization.

20973922266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317786717.

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 20973922266 in words is "twenty billion, nine hundred seventy-three million, nine hundred twenty-two thousand, two hundred sixty-six".