22089086640 has 80 divisors (see below), whose sum is σ = 76084639200. Its totient is φ = 5890422528.

The previous prime is 22089086623. The next prime is 22089086653. The reversal of 22089086640 is 4668098022.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×22089086640³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5111055 + ... + 5115374.

It is an arithmetic number, because the mean of its divisors is an integer number (951057990).

Almost surely, 2^22089086640 is an apocalyptic number.

22089086640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22089086640 is an abundant number, since it is smaller than the sum of its proper divisors (53995552560).

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

22089086640 is a wasteful number, since it uses less digits than its factorization.

22089086640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10226451 (or 10226439 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 22089086640 in words is "twenty-two billion, eighty-nine million, eighty-six thousand, six hundred forty".