190806166 has 4 divisors (see below), whose sum is σ = 286209252. Its totient is φ = 95403082.

The previous prime is 190806163. The next prime is 190806191. The reversal of 190806166 is 661608091.

190806166 is digitally balanced in base 3, 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (190806163) 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 as a sum of consecutive naturals, namely, 47701540 + ... + 47701543.

It is an arithmetic number, because the mean of its divisors is an integer number (71552313).

Almost surely, 2^190806166 is an apocalyptic number.

190806166 is a deficient number, since it is larger than the sum of its proper divisors (95403086).

190806166 is an equidigital number, since it uses as much as digits as its factorization.

190806166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95403085.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 190806166 is about 13813.2605129998. The cubic root of 190806166 is about 575.7016422773.

The spelling of 190806166 in words is "one hundred ninety million, eight hundred six thousand, one hundred sixty-six".