22051630368 has 36 divisors (see below), whose sum is σ = 62709324678. Its totient is φ = 7350543360.

The previous prime is 22051630361. The next prime is 22051630369. The reversal of 22051630368 is 86303615022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16606961424 + 5444668944 = 128868^2 + 73788^2 .

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 not an unprimeable number, because it can be changed into a prime (22051630361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38283793 + ... + 38284368.

Almost surely, 2^22051630368 is an apocalyptic number.

It is an amenable number.

22051630368 is an abundant number, since it is smaller than the sum of its proper divisors (40657694310).

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

22051630368 is a wasteful number, since it uses less digits than its factorization.

22051630368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76568177 (or 76568166 counting only the distinct ones).

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

The spelling of 22051630368 in words is "twenty-two billion, fifty-one million, six hundred thirty thousand, three hundred sixty-eight".