166162839 has 4 divisors (see below), whose sum is σ = 221550456. Its totient is φ = 110775224.

The previous prime is 166162807. The next prime is 166162859. The reversal of 166162839 is 938261661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938261661 = 3 ⋅312753887.

It is a cyclic number.

It is not a de Polignac number, because 166162839 - 2⁵ = 166162807 is a prime.

It is a super-2 number, since 2×166162839² = 55220178129079842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166162839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166162859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27693804 + ... + 27693809.

It is an arithmetic number, because the mean of its divisors is an integer number (55387614).

Almost surely, 2^166162839 is an apocalyptic number.

166162839 is a deficient number, since it is larger than the sum of its proper divisors (55387617).

166162839 is an equidigital number, since it uses as much as digits as its factorization.

166162839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55387616.

The product of its digits is 93312, while the sum is 42.

The square root of 166162839 is about 12890.4165564965. The cubic root of 166162839 is about 549.7661143291.

The spelling of 166162839 in words is "one hundred sixty-six million, one hundred sixty-two thousand, eight hundred thirty-nine".