22551333640 has 64 divisors (see below), whose sum is σ = 55371936960. Its totient is φ = 8197720320.

The previous prime is 22551333613. The next prime is 22551333671. The reversal of 22551333640 is 4633315522.

It is a junction number, because it is equal to n+sod(n) for n = 22551333596 and 22551333605.

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, 1666582 + ... + 1680058.

It is an arithmetic number, because the mean of its divisors is an integer number (865186515).

Almost surely, 2^22551333640 is an apocalyptic number.

22551333640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22551333640 is an abundant number, since it is smaller than the sum of its proper divisors (32820603320).

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

22551333640 is a wasteful number, since it uses less digits than its factorization.

22551333640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17302 (or 17298 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 22551333640 in words is "twenty-two billion, five hundred fifty-one million, three hundred thirty-three thousand, six hundred forty".