166023934319 has 2 divisors, whose sum is σ = 166023934320. Its totient is φ = 166023934318.

The previous prime is 166023934303. The next prime is 166023934361. The reversal of 166023934319 is 913439320661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166023934319 - 2⁴ = 166023934303 is a prime.

It is a super-2 number, since 2×166023934319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166023934369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83011967159 + 83011967160.

It is an arithmetic number, because the mean of its divisors is an integer number (83011967160).

Almost surely, 2^166023934319 is an apocalyptic number.

166023934319 is a deficient number, since it is larger than the sum of its proper divisors (1).

166023934319 is an equidigital number, since it uses as much as digits as its factorization.

166023934319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 47.

The spelling of 166023934319 in words is "one hundred sixty-six billion, twenty-three million, nine hundred thirty-four thousand, three hundred nineteen".