166740206 has 16 divisors (see below), whose sum is σ = 256175568. Its totient is φ = 81369600.

The previous prime is 166740149. The next prime is 166740221. The reversal of 166740206 is 602047661.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10766 + ... + 21198.

It is an arithmetic number, because the mean of its divisors is an integer number (16010973).

Almost surely, 2^166740206 is an apocalyptic number.

166740206 is a deficient number, since it is larger than the sum of its proper divisors (89435362).

166740206 is a wasteful number, since it uses less digits than its factorization.

166740206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10627.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 166740206 is about 12912.7923393819. The cubic root of 166740206 is about 550.4021367569.

Adding to 166740206 its reverse (602047661), we get a palindrome (768787867).

The spelling of 166740206 in words is "one hundred sixty-six million, seven hundred forty thousand, two hundred six".