22153170440 has 16 divisors (see below), whose sum is σ = 49844633580. Its totient is φ = 8861268160.

The previous prime is 22153170437. The next prime is 22153170449. The reversal of 22153170440 is 4407135122.

It can be written as a sum of positive squares in 2 ways, for example, as 22045716484 + 107453956 = 148478^2 + 10366^2 .

It is not an unprimeable number, because it can be changed into a prime (22153170449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276914591 + ... + 276914670.

Almost surely, 2^22153170440 is an apocalyptic number.

22153170440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22153170440 is an abundant number, since it is smaller than the sum of its proper divisors (27691463140).

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

22153170440 is a wasteful number, since it uses less digits than its factorization.

22153170440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553829272 (or 553829268 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The spelling of 22153170440 in words is "twenty-two billion, one hundred fifty-three million, one hundred seventy thousand, four hundred forty".