22159391951513 has 2 divisors, whose sum is σ = 22159391951514. Its totient is φ = 22159391951512.

The previous prime is 22159391951441. The next prime is 22159391951531. The reversal of 22159391951513 is 31515919395122.

Together with next prime (22159391951531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19942771227289 + 2216620724224 = 4465733^2 + 1488832^2 .

It is a cyclic number.

It is not a de Polignac number, because 22159391951513 - 2³⁴ = 22142212082329 is a prime.

It is not a weakly prime, because it can be changed into another prime (22159391951413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11079695975756 + 11079695975757.

It is an arithmetic number, because the mean of its divisors is an integer number (11079695975757).

Almost surely, 2^{22159391951513} is an apocalyptic number.

It is an amenable number.

22159391951513 is a deficient number, since it is larger than the sum of its proper divisors (1).

22159391951513 is an equidigital number, since it uses as much as digits as its factorization.

22159391951513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3280500, while the sum is 56.

The spelling of 22159391951513 in words is "twenty-two trillion, one hundred fifty-nine billion, three hundred ninety-one million, nine hundred fifty-one thousand, five hundred thirteen".