166013236604163 has 16 divisors (see below), whose sum is σ = 242418285527040. Its totient is φ = 100430432572704.

The previous prime is 166013236604129. The next prime is 166013236604167. The reversal of 166013236604163 is 361406632310661.

It is a happy number.

It is not a de Polignac number, because 166013236604163 - 2¹² = 166013236600067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166013236604167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36074147331 + ... + 36074151932.

It is an arithmetic number, because the mean of its divisors is an integer number (15151142845440).

Almost surely, 2^{166013236604163} is an apocalyptic number.

166013236604163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

166013236604163 is a deficient number, since it is larger than the sum of its proper divisors (76405048922877).

166013236604163 is a wasteful number, since it uses less digits than its factorization.

166013236604163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72148299338.

The product of its (nonzero) digits is 1679616, while the sum is 48.

The spelling of 166013236604163 in words is "one hundred sixty-six trillion, thirteen billion, two hundred thirty-six million, six hundred four thousand, one hundred sixty-three".