166045347 has 24 divisors (see below), whose sum is σ = 258983088. Its totient is φ = 101908800.

The previous prime is 166045339. The next prime is 166045391. The reversal of 166045347 is 743540661.

It is a happy number.

166045347 is a `hidden beast` number, since 1 + 6 + 604 + 5 + 3 + 47 = 666.

It is not a de Polignac number, because 166045347 - 2³ = 166045339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166045147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47572 + ... + 50942.

It is an arithmetic number, because the mean of its divisors is an integer number (10790962).

Almost surely, 2^166045347 is an apocalyptic number.

166045347 is a deficient number, since it is larger than the sum of its proper divisors (92937741).

166045347 is a wasteful number, since it uses less digits than its factorization.

166045347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3811 (or 3808 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 166045347 is about 12885.8584114525. The cubic root of 166045347 is about 549.6365058257.

The spelling of 166045347 in words is "one hundred sixty-six million, forty-five thousand, three hundred forty-seven".