22556520163357 has 2 divisors, whose sum is σ = 22556520163358. Its totient is φ = 22556520163356.

The previous prime is 22556520163253. The next prime is 22556520163391. The reversal of 22556520163357 is 75336102565522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17156710748356 + 5399809415001 = 4142066^2 + 2323749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22556520163357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22556524163357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11278260081678 + 11278260081679.

It is an arithmetic number, because the mean of its divisors is an integer number (11278260081679).

Almost surely, 2^{22556520163357} is an apocalyptic number.

It is an amenable number.

22556520163357 is a deficient number, since it is larger than the sum of its proper divisors (1).

22556520163357 is an equidigital number, since it uses as much as digits as its factorization.

22556520163357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340000, while the sum is 52.

The spelling of 22556520163357 in words is "twenty-two trillion, five hundred fifty-six billion, five hundred twenty million, one hundred sixty-three thousand, three hundred fifty-seven".