166162843 has 16 divisors (see below), whose sum is σ = 209309184. Its totient is φ = 128136960.

The previous prime is 166162807. The next prime is 166162859. The reversal of 166162843 is 348261661.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-166162843 is a prime.

It is a super-2 number, since 2×166162843² = 55220180787685298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166162643) 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 15 ways as a sum of consecutive naturals, for example, 3655 + ... + 18592.

It is an arithmetic number, because the mean of its divisors is an integer number (13081824).

Almost surely, 2^166162843 is an apocalyptic number.

166162843 is a deficient number, since it is larger than the sum of its proper divisors (43146341).

166162843 is a wasteful number, since it uses less digits than its factorization.

166162843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22362.

The product of its digits is 41472, while the sum is 37.

The square root of 166162843 is about 12890.4167116506. The cubic root of 166162843 is about 549.7661187406.

The spelling of 166162843 in words is "one hundred sixty-six million, one hundred sixty-two thousand, eight hundred forty-three".