165290055673 has 2 divisors, whose sum is σ = 165290055674. Its totient is φ = 165290055672.

The previous prime is 165290055643. The next prime is 165290055713. The reversal of 165290055673 is 376550092561.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165281276304 + 8779369 = 406548^2 + 2963^2 .

It is a cyclic number.

It is not a de Polignac number, because 165290055673 - 2¹⁷ = 165289924601 is a prime.

It is not a weakly prime, because it can be changed into another prime (165290055613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82645027836 + 82645027837.

It is an arithmetic number, because the mean of its divisors is an integer number (82645027837).

Almost surely, 2^165290055673 is an apocalyptic number.

It is an amenable number.

165290055673 is a deficient number, since it is larger than the sum of its proper divisors (1).

165290055673 is an equidigital number, since it uses as much as digits as its factorization.

165290055673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701000, while the sum is 49.

The spelling of 165290055673 in words is "one hundred sixty-five billion, two hundred ninety million, fifty-five thousand, six hundred seventy-three".