22561660263152 has 20 divisors (see below), whose sum is σ = 43718275842336. Its totient is φ = 11279524561920.

The previous prime is 22561660263151. The next prime is 22561660263169. The reversal of 22561660263152 is 25136206616522.

It is a junction number, because it is equal to n+sod(n) for n = 22561660263097 and 22561660263106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22561660263151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81455528 + ... + 81732039.

Almost surely, 2^{22561660263152} is an apocalyptic number.

It is an amenable number.

22561660263152 is a deficient number, since it is larger than the sum of its proper divisors (21156615579184).

22561660263152 is a wasteful number, since it uses less digits than its factorization.

22561660263152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163196216 (or 163196210 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

Adding to 22561660263152 its reverse (25136206616522), we get a palindrome (47697866879674).

The spelling of 22561660263152 in words is "twenty-two trillion, five hundred sixty-one billion, six hundred sixty million, two hundred sixty-three thousand, one hundred fifty-two".