22066554122551 has 2 divisors, whose sum is σ = 22066554122552. Its totient is φ = 22066554122550.

The previous prime is 22066554122539. The next prime is 22066554122593. The reversal of 22066554122551 is 15522145566022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22066554122551 - 2⁵ = 22066554122519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22066554222551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11033277061275 + 11033277061276.

It is an arithmetic number, because the mean of its divisors is an integer number (11033277061276).

Almost surely, 2^{22066554122551} is an apocalyptic number.

22066554122551 is a deficient number, since it is larger than the sum of its proper divisors (1).

22066554122551 is an equidigital number, since it uses as much as digits as its factorization.

22066554122551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440000, while the sum is 46.

Adding to 22066554122551 its reverse (15522145566022), we get a palindrome (37588699688573).

The spelling of 22066554122551 in words is "twenty-two trillion, sixty-six billion, five hundred fifty-four million, one hundred twenty-two thousand, five hundred fifty-one".