22556211063553 has 2 divisors, whose sum is σ = 22556211063554. Its totient is φ = 22556211063552.

The previous prime is 22556211063461. The next prime is 22556211063647. The reversal of 22556211063553 is 35536011265522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15746031888129 + 6810179175424 = 3968127^2 + 2609632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22556211063553 is a prime.

It is not a weakly prime, because it can be changed into another prime (22556211067553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11278105531776 + 11278105531777.

It is an arithmetic number, because the mean of its divisors is an integer number (11278105531777).

Almost surely, 2^{22556211063553} is an apocalyptic number.

It is an amenable number.

22556211063553 is a deficient number, since it is larger than the sum of its proper divisors (1).

22556211063553 is an equidigital number, since it uses as much as digits as its factorization.

22556211063553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 22556211063553 in words is "twenty-two trillion, five hundred fifty-six billion, two hundred eleven million, sixty-three thousand, five hundred fifty-three".