20812162882 has 24 divisors (see below), whose sum is σ = 36382319100. Its totient is φ = 8902988640.

The previous prime is 20812162871. The next prime is 20812162901. The reversal of 20812162882 is 28826121802.

It can be written as a sum of positive squares in 2 ways, for example, as 20558111161 + 254051721 = 143381^2 + 15939^2 .

It is a super-2 number, since 2×20812162882² (a number of 21 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 143257 + ... + 249292.

Almost surely, 2^20812162882 is an apocalyptic number.

20812162882 is a deficient number, since it is larger than the sum of its proper divisors (15570156218).

20812162882 is a wasteful number, since it uses less digits than its factorization.

20812162882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393106 (or 393099 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The spelling of 20812162882 in words is "twenty billion, eight hundred twelve million, one hundred sixty-two thousand, eight hundred eighty-two".