22551796221660 has 36 divisors (see below), whose sum is σ = 68407115206248. Its totient is φ = 6013812325728.

The previous prime is 22551796221659. The next prime is 22551796221671. The reversal of 22551796221660 is 6612269715522.

22551796221660 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 1 + 7 + 9 + 622 + 1 + 6 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 22551796221597 and 22551796221606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62643878214 + ... + 62643878573.

It is an arithmetic number, because the mean of its divisors is an integer number (1900197644618).

Almost surely, 2^{22551796221660} is an apocalyptic number.

22551796221660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22551796221660 is an abundant number, since it is smaller than the sum of its proper divisors (45855318984588).

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

22551796221660 is a wasteful number, since it uses less digits than its factorization.

22551796221660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125287756802 (or 125287756797 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 22551796221660 in words is "twenty-two trillion, five hundred fifty-one billion, seven hundred ninety-six million, two hundred twenty-one thousand, six hundred sixty".