22554871605 has 40 divisors (see below), whose sum is σ = 46207658112. Its totient is φ = 10310797152.

The previous prime is 22554871561. The next prime is 22554871609. The reversal of 22554871605 is 50617845522.

22554871605 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 487 + 160 + 5 = 666.

It is not a de Polignac number, because 22554871605 - 2¹² = 22554867509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22554871609) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3975097 + ... + 3980766.

Almost surely, 2^22554871605 is an apocalyptic number.

It is an amenable number.

22554871605 is an abundant number, since it is smaller than the sum of its proper divisors (23652786507).

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

22554871605 is an equidigital number, since it uses as much as digits as its factorization.

22554871605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7955887 (or 7955878 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 22554871605 in words is "twenty-two billion, five hundred fifty-four million, eight hundred seventy-one thousand, six hundred five".