22155561696 has 24 divisors (see below), whose sum is σ = 58158349704. Its totient is φ = 7385187200.

The previous prime is 22155561691. The next prime is 22155561713. The reversal of 22155561696 is 69616555122.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155561691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115393455 + ... + 115393646.

It is an arithmetic number, because the mean of its divisors is an integer number (2423264571).

Almost surely, 2^22155561696 is an apocalyptic number.

It is an amenable number.

22155561696 is an abundant number, since it is smaller than the sum of its proper divisors (36002788008).

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

22155561696 is a wasteful number, since it uses less digits than its factorization.

22155561696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230787114 (or 230787106 counting only the distinct ones).

The product of its digits is 972000, while the sum is 48.

The spelling of 22155561696 in words is "twenty-two billion, one hundred fifty-five million, five hundred sixty-one thousand, six hundred ninety-six".