22640357148 has 24 divisors (see below), whose sum is σ = 52846794000. Its totient is φ = 7544029440.

The previous prime is 22640357123. The next prime is 22640357171. The reversal of 22640357148 is 84175304622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310173 + ... + 376148.

It is an arithmetic number, because the mean of its divisors is an integer number (2201949750).

Almost surely, 2^22640357148 is an apocalyptic number.

It is an amenable number.

22640357148 is an abundant number, since it is smaller than the sum of its proper divisors (30206436852).

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

22640357148 is a wasteful number, since it uses less digits than its factorization.

22640357148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689077 (or 689075 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 22640357148 in words is "twenty-two billion, six hundred forty million, three hundred fifty-seven thousand, one hundred forty-eight".