166629039 has 8 divisors (see below), whose sum is σ = 225937920. Its totient is φ = 109203096.

The previous prime is 166629037. The next prime is 166629079. The reversal of 166629039 is 930926661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166629039 - 2¹ = 166629037 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166629037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470527 + ... + 470880.

It is an arithmetic number, because the mean of its divisors is an integer number (28242240).

Almost surely, 2^166629039 is an apocalyptic number.

166629039 is a deficient number, since it is larger than the sum of its proper divisors (59308881).

166629039 is an equidigital number, since it uses as much as digits as its factorization.

166629039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941469.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 166629039 is about 12908.4870918323. The cubic root of 166629039 is about 550.2797904261.

The spelling of 166629039 in words is "one hundred sixty-six million, six hundred twenty-nine thousand, thirty-nine".