166701667 has 8 divisors (see below), whose sum is σ = 181985472. Its totient is φ = 151439400.

The previous prime is 166701659. The next prime is 166701673. The reversal of 166701667 is 766107661.

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 166701667 - 2³ = 166701659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166701617) 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 7 ways as a sum of consecutive naturals, for example, 13792 + ... + 22882.

It is an arithmetic number, because the mean of its divisors is an integer number (22748184).

Almost surely, 2^166701667 is an apocalyptic number.

166701667 is a deficient number, since it is larger than the sum of its proper divisors (15283805).

166701667 is a wasteful number, since it uses less digits than its factorization.

166701667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10769.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 166701667 is about 12911.2999732792. The cubic root of 166701667 is about 550.3597283042.

The spelling of 166701667 in words is "one hundred sixty-six million, seven hundred one thousand, six hundred sixty-seven".