22864539016681 has 2 divisors, whose sum is σ = 22864539016682. Its totient is φ = 22864539016680.

The previous prime is 22864539016633. The next prime is 22864539016687. The reversal of 22864539016681 is 18661093546822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22864262792281 + 276224400 = 4781659^2 + 16620^2 .

It is a cyclic number.

It is not a de Polignac number, because 22864539016681 - 2⁹ = 22864539016169 is a prime.

It is a super-2 number, since 2×22864539016681² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22864539016687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11432269508340 + 11432269508341.

It is an arithmetic number, because the mean of its divisors is an integer number (11432269508341).

Almost surely, 2^{22864539016681} is an apocalyptic number.

It is an amenable number.

22864539016681 is a deficient number, since it is larger than the sum of its proper divisors (1).

22864539016681 is an equidigital number, since it uses as much as digits as its factorization.

22864539016681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 22864539016681 in words is "twenty-two trillion, eight hundred sixty-four billion, five hundred thirty-nine million, sixteen thousand, six hundred eighty-one".