20982164144 has 80 divisors (see below), whose sum is σ = 41900461056. Its totient is φ = 10174982400.

The previous prime is 20982164101. The next prime is 20982164191. The reversal of 20982164144 is 44146128902.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34566689 + ... + 34567295.

Almost surely, 2^20982164144 is an apocalyptic number.

It is an amenable number.

20982164144 is a deficient number, since it is larger than the sum of its proper divisors (20918296912).

20982164144 is a wasteful number, since it uses less digits than its factorization.

20982164144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 20982164144 in words is "twenty billion, nine hundred eighty-two million, one hundred sixty-four thousand, one hundred forty-four".