22706816537889 has 135 divisors (see below), whose sum is σ = 37679335845921. Its totient is φ = 13617322432560.

The previous prime is 22706816537861. The next prime is 22706816537891. The reversal of 22706816537889 is 98873561860722.

The square root of 22706816537889 is 4765167.

It is a perfect power (a square), and thus also a powerful number.

22706816537889 is a `hidden beast` number, since 2 + 2 + 7 + 0 + 6 + 8 + 1 + 6 + 537 + 8 + 89 = 666.

It is not a de Polignac number, because 22706816537889 - 2⁵ = 22706816537857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22706816537819) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 59912444502 + ... + 59912444880.

Almost surely, 2^{22706816537889} is an apocalyptic number.

22706816537889 is the 4765167-th square number.

22706816537889 is the 2382584-th centered octagonal number.

It is an amenable number.

22706816537889 is a deficient number, since it is larger than the sum of its proper divisors (14972519308032).

22706816537889 is an frugal number, since it uses more digits than its factorization.

22706816537889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 72.

The spelling of 22706816537889 in words is "twenty-two trillion, seven hundred six billion, eight hundred sixteen million, five hundred thirty-seven thousand, eight hundred eighty-nine".