20977675182 has 48 divisors (see below), whose sum is σ = 47636933760. Its totient is φ = 6659039376.

The previous prime is 20977675171. The next prime is 20977675207. The reversal of 20977675182 is 28157677902.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17632 + ... + 205587.

It is an arithmetic number, because the mean of its divisors is an integer number (992436120).

Almost surely, 2^20977675182 is an apocalyptic number.

20977675182 is an abundant number, since it is smaller than the sum of its proper divisors (26659258578).

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

20977675182 is a wasteful number, since it uses less digits than its factorization.

20977675182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223477 (or 223474 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 54.

The spelling of 20977675182 in words is "twenty billion, nine hundred seventy-seven million, six hundred seventy-five thousand, one hundred eighty-two".