20653134556 has 24 divisors (see below), whose sum is σ = 39932917920. Its totient is φ = 9296550912.

The previous prime is 20653134547. The next prime is 20653134563. The reversal of 20653134556 is 65543135602.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6601101 + ... + 6604228.

It is an arithmetic number, because the mean of its divisors is an integer number (1663871580).

Almost surely, 2^20653134556 is an apocalyptic number.

It is an amenable number.

20653134556 is a deficient number, since it is larger than the sum of its proper divisors (19279783364).

20653134556 is a wasteful number, since it uses less digits than its factorization.

20653134556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13205373 (or 13205371 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 20653134556 in words is "twenty billion, six hundred fifty-three million, one hundred thirty-four thousand, five hundred fifty-six".