22661105436 has 36 divisors (see below), whose sum is σ = 58614387832. Its totient is φ = 7378033824.

The previous prime is 22661105381. The next prime is 22661105569. The reversal of 22661105436 is 63450116622.

22661105436 is a `hidden beast` number, since 2 + 2 + 6 + 611 + 0 + 5 + 4 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22661105436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7317931 + ... + 7321026.

Almost surely, 2^22661105436 is an apocalyptic number.

It is an amenable number.

22661105436 is an abundant number, since it is smaller than the sum of its proper divisors (35953282396).

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

22661105436 is a wasteful number, since it uses less digits than its factorization.

22661105436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14639010 (or 14639005 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 22661105436 in words is "twenty-two billion, six hundred sixty-one million, one hundred five thousand, four hundred thirty-six".