166339147 has 4 divisors (see below), whose sum is σ = 179134480. Its totient is φ = 153543816.

The previous prime is 166339141. The next prime is 166339153. The reversal of 166339147 is 741933661.

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

It is an interprime number because it is at equal distance from previous prime (166339141) and next prime (166339153).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166339147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166339141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6397647 + ... + 6397672.

It is an arithmetic number, because the mean of its divisors is an integer number (44783620).

Almost surely, 2^166339147 is an apocalyptic number.

166339147 is a deficient number, since it is larger than the sum of its proper divisors (12795333).

166339147 is a wasteful number, since it uses less digits than its factorization.

166339147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12795332.

The product of its digits is 81648, while the sum is 40.

The square root of 166339147 is about 12897.2534673085. The cubic root of 166339147 is about 549.9604897238.

The spelling of 166339147 in words is "one hundred sixty-six million, three hundred thirty-nine thousand, one hundred forty-seven".