20977133262 has 16 divisors (see below), whose sum is σ = 41988585600. Its totient is φ = 6986657912.

The previous prime is 20977133237. The next prime is 20977133263. The reversal of 20977133262 is 26233177902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20977133263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422012 + ... + 1436687.

It is an arithmetic number, because the mean of its divisors is an integer number (2624286600).

Almost surely, 2^20977133262 is an apocalyptic number.

20977133262 is an abundant number, since it is smaller than the sum of its proper divisors (21011452338).

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

20977133262 is a wasteful number, since it uses less digits than its factorization.

20977133262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859927.

The product of its (nonzero) digits is 190512, while the sum is 42.

The spelling of 20977133262 in words is "twenty billion, nine hundred seventy-seven million, one hundred thirty-three thousand, two hundred sixty-two".