22418581052 has 24 divisors (see below), whose sum is σ = 46048979424. Its totient is φ = 9348288192.

The previous prime is 22418581033. The next prime is 22418581067. The reversal of 22418581052 is 25018581422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22418580997 and 22418581015.

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, 10818743 + ... + 10820814.

It is an arithmetic number, because the mean of its divisors is an integer number (1918707476).

Almost surely, 2^22418581052 is an apocalyptic number.

It is an amenable number.

22418581052 is an abundant number, since it is smaller than the sum of its proper divisors (23630398372).

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

22418581052 is a wasteful number, since it uses less digits than its factorization.

22418581052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21639605 (or 21639603 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 38.

The spelling of 22418581052 in words is "twenty-two billion, four hundred eighteen million, five hundred eighty-one thousand, fifty-two".