22195661136 has 120 divisors (see below), whose sum is σ = 63115147872. Its totient is φ = 6716371200.

The previous prime is 22195661113. The next prime is 22195661197. The reversal of 22195661136 is 63116659122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4800906 + ... + 4805526.

Almost surely, 2^22195661136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22195661136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31557573936).

22195661136 is an abundant number, since it is smaller than the sum of its proper divisors (40919486736).

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

22195661136 is a wasteful number, since it uses less digits than its factorization.

22195661136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5481 (or 5464 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The spelling of 22195661136 in words is "twenty-two billion, one hundred ninety-five million, six hundred sixty-one thousand, one hundred thirty-six".