20955652623 has 12 divisors (see below), whose sum is σ = 30426114160. Its totient is φ = 13898048256.

The previous prime is 20955652621. The next prime is 20955652643. The reversal of 20955652623 is 32625655902.

20955652623 is a `hidden beast` number, since 20 + 9 + 5 + 565 + 2 + 62 + 3 = 666.

It is not a de Polignac number, because 20955652623 - 2¹ = 20955652621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20955652621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6030403 + ... + 6033876.

Almost surely, 2^20955652623 is an apocalyptic number.

20955652623 is a deficient number, since it is larger than the sum of its proper divisors (9470461537).

20955652623 is a wasteful number, since it uses less digits than its factorization.

20955652623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12064478 (or 12064475 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 20955652623 in words is "twenty billion, nine hundred fifty-five million, six hundred fifty-two thousand, six hundred twenty-three".