166027699 has 4 divisors (see below), whose sum is σ = 166072536. Its totient is φ = 165982864.

The previous prime is 166027679. The next prime is 166027709. The reversal of 166027699 is 996720661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996720661 = 293 ⋅3401777.

It is a cyclic number.

It is not a de Polignac number, because 166027699 - 2¹³ = 166019507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166027649) 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, 16309 + ... + 24454.

It is an arithmetic number, because the mean of its divisors is an integer number (41518134).

Almost surely, 2^166027699 is an apocalyptic number.

166027699 is a deficient number, since it is larger than the sum of its proper divisors (44837).

166027699 is an equidigital number, since it uses as much as digits as its factorization.

166027699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44836.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 166027699 is about 12885.1736115584. The cubic root of 166027699 is about 549.6170325735.

The spelling of 166027699 in words is "one hundred sixty-six million, twenty-seven thousand, six hundred ninety-nine".