166314845123 has 4 divisors (see below), whose sum is σ = 190074108720. Its totient is φ = 142555581528.

The previous prime is 166314845113. The next prime is 166314845143. The reversal of 166314845123 is 321548413661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166314845123 - 2⁸ = 166314844867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166314845113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11879631788 + ... + 11879631801.

It is an arithmetic number, because the mean of its divisors is an integer number (47518527180).

Almost surely, 2^166314845123 is an apocalyptic number.

166314845123 is a deficient number, since it is larger than the sum of its proper divisors (23759263597).

166314845123 is an equidigital number, since it uses as much as digits as its factorization.

166314845123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23759263596.

The product of its digits is 414720, while the sum is 44.

The spelling of 166314845123 in words is "one hundred sixty-six billion, three hundred fourteen million, eight hundred forty-five thousand, one hundred twenty-three".