22025633436 has 18 divisors (see below), whose sum is σ = 55675906832. Its totient is φ = 7341877800.

The previous prime is 22025633431. The next prime is 22025633447. The reversal of 22025633436 is 63433652022.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 611823151 = 22025633436 / (2 + 2 + 0 + 2 + 5 + 6 + 3 + 3 + 4 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 22025633436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22025633431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305911540 + ... + 305911611.

Almost surely, 2^22025633436 is an apocalyptic number.

It is an amenable number.

22025633436 is an abundant number, since it is smaller than the sum of its proper divisors (33650273396).

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

22025633436 is a wasteful number, since it uses less digits than its factorization.

22025633436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611823161 (or 611823156 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

The spelling of 22025633436 in words is "twenty-two billion, twenty-five million, six hundred thirty-three thousand, four hundred thirty-six".