166724711039 has 4 divisors (see below), whose sum is σ = 166770480456. Its totient is φ = 166678941624.

The previous prime is 166724711011. The next prime is 166724711051. The reversal of 166724711039 is 930117427661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930117427661 = 69959 ⋅13295179.

It is a cyclic number.

It is not a de Polignac number, because 166724711039 - 2²⁴ = 166707933823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166724710984 and 166724711002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166724710039) 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, 22879244 + ... + 22886529.

It is an arithmetic number, because the mean of its divisors is an integer number (41692620114).

Almost surely, 2^166724711039 is an apocalyptic number.

166724711039 is a deficient number, since it is larger than the sum of its proper divisors (45769417).

166724711039 is an equidigital number, since it uses as much as digits as its factorization.

166724711039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45769416.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 166724711039 in words is "one hundred sixty-six billion, seven hundred twenty-four million, seven hundred eleven thousand, thirty-nine".