22645115252 has 12 divisors (see below), whose sum is σ = 39664437540. Its totient is φ = 11312418816.

The previous prime is 22645115239. The next prime is 22645115263. The reversal of 22645115252 is 25251154622.

It can be written as a sum of positive squares in 2 ways, for example, as 3954397456 + 18690717796 = 62884^2 + 136714^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2529677 + ... + 2538612.

It is an arithmetic number, because the mean of its divisors is an integer number (3305369795).

Almost surely, 2^22645115252 is an apocalyptic number.

It is an amenable number.

22645115252 is a deficient number, since it is larger than the sum of its proper divisors (17019322288).

22645115252 is a wasteful number, since it uses less digits than its factorization.

22645115252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5069410 (or 5069408 counting only the distinct ones).

The product of its digits is 48000, while the sum is 35.

Adding to 22645115252 its reverse (25251154622), we get a palindrome (47896269874).

The spelling of 22645115252 in words is "twenty-two billion, six hundred forty-five million, one hundred fifteen thousand, two hundred fifty-two".