166632429 has 8 divisors (see below), whose sum is σ = 222749280. Its totient is φ = 110801936.

The previous prime is 166632391. The next prime is 166632443. The reversal of 166632429 is 924236661.

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

It is a cyclic number.

It is not a de Polignac number, because 166632429 - 2¹² = 166628333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166632449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70227 + ... + 72560.

It is an arithmetic number, because the mean of its divisors is an integer number (27843660).

Almost surely, 2^166632429 is an apocalyptic number.

It is an amenable number.

166632429 is a deficient number, since it is larger than the sum of its proper divisors (56116851).

166632429 is a wasteful number, since it uses less digits than its factorization.

166632429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143179.

The product of its digits is 93312, while the sum is 39.

The square root of 166632429 is about 12908.6184001232. The cubic root of 166632429 is about 550.2835221403.

The spelling of 166632429 in words is "one hundred sixty-six million, six hundred thirty-two thousand, four hundred twenty-nine".