22254357086840 has 64 divisors (see below), whose sum is σ = 51822379294560. Its totient is φ = 8595094855680.

The previous prime is 22254357086827. The next prime is 22254357086849. The reversal of 22254357086840 is 4868075345222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22254357086849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69787982 + ... + 70106141.

Almost surely, 2^{22254357086840} is an apocalyptic number.

22254357086840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22254357086840 is an abundant number, since it is smaller than the sum of its proper divisors (29568022207720).

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

22254357086840 is a wasteful number, since it uses less digits than its factorization.

22254357086840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139894272 (or 139894268 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 56.

The spelling of 22254357086840 in words is "twenty-two trillion, two hundred fifty-four billion, three hundred fifty-seven million, eighty-six thousand, eight hundred forty".