166328617323 has 16 divisors (see below), whose sum is σ = 241962126336. Its totient is φ = 100792892640.

The previous prime is 166328617309. The next prime is 166328617337. The reversal of 166328617323 is 323716823661.

It is an interprime number because it is at equal distance from previous prime (166328617309) and next prime (166328617337).

It is not a de Polignac number, because 166328617323 - 2⁵ = 166328617291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166328617303) 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, 30636 + ... + 577577.

It is an arithmetic number, because the mean of its divisors is an integer number (15122632896).

Almost surely, 2^166328617323 is an apocalyptic number.

166328617323 is a deficient number, since it is larger than the sum of its proper divisors (75633509013).

166328617323 is a wasteful number, since it uses less digits than its factorization.

166328617323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616514.

The product of its digits is 1306368, while the sum is 48.

The spelling of 166328617323 in words is "one hundred sixty-six billion, three hundred twenty-eight million, six hundred seventeen thousand, three hundred twenty-three".