166830407 has 4 divisors (see below), whose sum is σ = 166910400. Its totient is φ = 166750416.

The previous prime is 166830371. The next prime is 166830421. The reversal of 166830407 is 704038661.

166830407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166830407 - 2⁶ = 166830343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166830427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36782 + ... + 41067.

It is an arithmetic number, because the mean of its divisors is an integer number (41727600).

Almost surely, 2^166830407 is an apocalyptic number.

166830407 is a deficient number, since it is larger than the sum of its proper divisors (79993).

166830407 is an equidigital number, since it uses as much as digits as its factorization.

166830407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79992.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 166830407 is about 12916.2845663914. The cubic root of 166830407 is about 550.5013687190.

The spelling of 166830407 in words is "one hundred sixty-six million, eight hundred thirty thousand, four hundred seven".