2166044054093 has 2 divisors, whose sum is σ = 2166044054094. Its totient is φ = 2166044054092.

The previous prime is 2166044054003. The next prime is 2166044054107. The reversal of 2166044054093 is 3904504406612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2064112636804 + 101931417289 = 1436702^2 + 319267^2 .

It is a cyclic number.

It is not a de Polignac number, because 2166044054093 - 2²⁰ = 2166043005517 is a prime.

It is a super-2 number, since 2×2166044054093² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2166044054003) by changing a digit.

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 as a sum of consecutive naturals, namely, 1083022027046 + 1083022027047.

It is an arithmetic number, because the mean of its divisors is an integer number (1083022027047).

Almost surely, 2^{2166044054093} is an apocalyptic number.

It is an amenable number.

2166044054093 is a deficient number, since it is larger than the sum of its proper divisors (1).

2166044054093 is an equidigital number, since it uses as much as digits as its factorization.

2166044054093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 2166044054093 in words is "two trillion, one hundred sixty-six billion, forty-four million, fifty-four thousand, ninety-three".