166071207 has 16 divisors (see below), whose sum is σ = 231711840. Its totient is φ = 105685632.

The previous prime is 166071179. The next prime is 166071233. The reversal of 166071207 is 702170661.

It is a happy number.

It is not a de Polignac number, because 166071207 - 2¹⁰ = 166070183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166071007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8232 + ... + 19997.

It is an arithmetic number, because the mean of its divisors is an integer number (14481990).

Almost surely, 2^166071207 is an apocalyptic number.

166071207 is a deficient number, since it is larger than the sum of its proper divisors (65640633).

166071207 is a wasteful number, since it uses less digits than its factorization.

166071207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28322.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 166071207 is about 12886.8617979708. The cubic root of 166071207 is about 549.6650379154.

The spelling of 166071207 in words is "one hundred sixty-six million, seventy-one thousand, two hundred seven".