21883544955 has 32 divisors (see below), whose sum is σ = 40159057920. Its totient is φ = 11294730720.

The previous prime is 21883544929. The next prime is 21883544983. The reversal of 21883544955 is 55944538812.

21883544955 is a `hidden beast` number, since 2 + 1 + 8 + 8 + 3 + 544 + 95 + 5 = 666.

It is not a de Polignac number, because 21883544955 - 2⁵ = 21883544923 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2610337 + ... + 2618706.

It is an arithmetic number, because the mean of its divisors is an integer number (1254970560).

Almost surely, 2^21883544955 is an apocalyptic number.

21883544955 is a deficient number, since it is larger than the sum of its proper divisors (18275512965).

21883544955 is a wasteful number, since it uses less digits than its factorization.

21883544955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5229088 (or 5229082 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 54.

The spelling of 21883544955 in words is "twenty-one billion, eight hundred eighty-three million, five hundred forty-four thousand, nine hundred fifty-five".