20653338112 has 40 divisors (see below), whose sum is σ = 45017835192. Its totient is φ = 9387878400.

The previous prime is 20653338011. The next prime is 20653338113. The reversal of 20653338112 is 21183335602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20653338113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1827939 + ... + 1839202.

Almost surely, 2^20653338112 is an apocalyptic number.

20653338112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20653338112 is an abundant number, since it is smaller than the sum of its proper divisors (24364497080).

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

20653338112 is an equidigital number, since it uses as much as digits as its factorization.

20653338112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667170 (or 3667154 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 20653338112 in words is "twenty billion, six hundred fifty-three million, three hundred thirty-eight thousand, one hundred twelve".