20656353044 has 96 divisors (see below), whose sum is σ = 40589472000. Its totient is φ = 9155026944.

The previous prime is 20656353043. The next prime is 20656353077. The reversal of 20656353044 is 44035365602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 20656352989 and 20656353007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20656353041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35799284 + ... + 35799860.

It is an arithmetic number, because the mean of its divisors is an integer number (422807000).

Almost surely, 2^20656353044 is an apocalyptic number.

It is an amenable number.

20656353044 is a deficient number, since it is larger than the sum of its proper divisors (19933118956).

20656353044 is a wasteful number, since it uses less digits than its factorization.

20656353044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

The spelling of 20656353044 in words is "twenty billion, six hundred fifty-six million, three hundred fifty-three thousand, forty-four".