22645307652 has 48 divisors (see below), whose sum is σ = 57712580352. Its totient is φ = 6853883680.

The previous prime is 22645307647. The next prime is 22645307653. The reversal of 22645307652 is 25670354622.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22645307653) 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, 5443 + ... + 212885.

It is an arithmetic number, because the mean of its divisors is an integer number (1202345424).

Almost surely, 2^22645307652 is an apocalyptic number.

22645307652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22645307652 is an abundant number, since it is smaller than the sum of its proper divisors (35067272700).

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

22645307652 is a wasteful number, since it uses less digits than its factorization.

22645307652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208288 (or 208286 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 22645307652 in words is "twenty-two billion, six hundred forty-five million, three hundred seven thousand, six hundred fifty-two".