20653112260 has 48 divisors (see below), whose sum is σ = 47782913472. Its totient is φ = 7435856000.

The previous prime is 20653112243. The next prime is 20653112321. The reversal of 20653112260 is 6221135602.

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, 442522 + ... + 486961.

It is an arithmetic number, because the mean of its divisors is an integer number (995477364).

Almost surely, 2^20653112260 is an apocalyptic number.

20653112260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20653112260 is an abundant number, since it is smaller than the sum of its proper divisors (27129801212).

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

20653112260 is a wasteful number, since it uses less digits than its factorization.

20653112260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929604 (or 929602 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 20653112260 its reverse (6221135602), we get a palindrome (26874247862).

It can be divided in two parts, 206531 and 12260, that added together give a triangular number (218791 = T₆₆₁).

The spelling of 20653112260 in words is "twenty billion, six hundred fifty-three million, one hundred twelve thousand, two hundred sixty".