55116220445969 has 2 divisors, whose sum is σ = 55116220445970. Its totient is φ = 55116220445968.

The previous prime is 55116220445963. The next prime is 55116220446061. The reversal of 55116220445969 is 96954402261155.

55116220445969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32281317172225 + 22834903273744 = 5681665^2 + 4778588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55116220445969 is a prime.

It is a super-2 number, since 2×55116220445969² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55116220445963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27558110222984 + 27558110222985.

It is an arithmetic number, because the mean of its divisors is an integer number (27558110222985).

Almost surely, 2^{55116220445969} is an apocalyptic number.

It is an amenable number.

55116220445969 is a deficient number, since it is larger than the sum of its proper divisors (1).

55116220445969 is an equidigital number, since it uses as much as digits as its factorization.

55116220445969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328000, while the sum is 59.

The spelling of 55116220445969 in words is "fifty-five trillion, one hundred sixteen billion, two hundred twenty million, four hundred forty-five thousand, nine hundred sixty-nine".