166704377 has 8 divisors (see below), whose sum is σ = 191142336. Its totient is φ = 142422192.

The previous prime is 166704371. The next prime is 166704389. The reversal of 166704377 is 773407661.

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 166704377 - 2⁶ = 166704313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166704371) 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, 36638 + ... + 40935.

It is an arithmetic number, because the mean of its divisors is an integer number (23892792).

Almost surely, 2^166704377 is an apocalyptic number.

It is an amenable number.

166704377 is a deficient number, since it is larger than the sum of its proper divisors (24437959).

166704377 is an equidigital number, since it uses as much as digits as its factorization.

166704377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77887.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 166704377 is about 12911.4049196824. The cubic root of 166704377 is about 550.3627106115.

The spelling of 166704377 in words is "one hundred sixty-six million, seven hundred four thousand, three hundred seventy-seven".