166672038 has 32 divisors (see below), whose sum is σ = 359495136. Its totient is φ = 51211008.

The previous prime is 166672021. The next prime is 166672039. The reversal of 166672038 is 830276661.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 166671987 and 166672005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166672039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86170 + ... + 88082.

It is an arithmetic number, because the mean of its divisors is an integer number (11234223).

Almost surely, 2^166672038 is an apocalyptic number.

166672038 is an abundant number, since it is smaller than the sum of its proper divisors (192823098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166672038 is a wasteful number, since it uses less digits than its factorization.

166672038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 166672038 is about 12910.1525165274. The cubic root of 166672038 is about 550.3271200029.

The spelling of 166672038 in words is "one hundred sixty-six million, six hundred seventy-two thousand, thirty-eight".