22155233020165 has 16 divisors (see below), whose sum is σ = 30387791294208. Its totient is φ = 15190423923456.

The previous prime is 22155233020139. The next prime is 22155233020187. The reversal of 22155233020165 is 56102033255122.

It is a cyclic number.

It is not a de Polignac number, because 22155233020165 - 2⁵ = 22155233020133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35853057 + ... + 36465766.

It is an arithmetic number, because the mean of its divisors is an integer number (1899236955888).

Almost surely, 2^{22155233020165} is an apocalyptic number.

It is an amenable number.

22155233020165 is a deficient number, since it is larger than the sum of its proper divisors (8232558274043).

22155233020165 is an equidigital number, since it uses as much as digits as its factorization.

22155233020165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72327588.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 22155233020165 its reverse (56102033255122), we get a palindrome (78257266275287).

The spelling of 22155233020165 in words is "twenty-two trillion, one hundred fifty-five billion, two hundred thirty-three million, twenty thousand, one hundred sixty-five".