166598058263 has 12 divisors (see below), whose sum is σ = 206170379568. Its totient is φ = 131813847360.

The previous prime is 166598058257. The next prime is 166598058301. The reversal of 166598058263 is 362850895661.

It is not a de Polignac number, because 166598058263 - 2⁶ = 166598058199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166598058203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70412198 + ... + 70414563.

It is an arithmetic number, because the mean of its divisors is an integer number (17180864964).

Almost surely, 2^166598058263 is an apocalyptic number.

166598058263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

166598058263 is a deficient number, since it is larger than the sum of its proper divisors (39572321305).

166598058263 is a wasteful number, since it uses less digits than its factorization.

166598058263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140826794 (or 140826781 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 59.

The spelling of 166598058263 in words is "one hundred sixty-six billion, five hundred ninety-eight million, fifty-eight thousand, two hundred sixty-three".