166308827 has 4 divisors (see below), whose sum is σ = 166369896. Its totient is φ = 166247760.

The previous prime is 166308811. The next prime is 166308829. The reversal of 166308827 is 728803661.

It is a happy number.

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 166308827 - 2⁴ = 166308811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166308829) 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, 26249 + ... + 31962.

It is an arithmetic number, because the mean of its divisors is an integer number (41592474).

Almost surely, 2^166308827 is an apocalyptic number.

166308827 is a deficient number, since it is larger than the sum of its proper divisors (61069).

166308827 is an equidigital number, since it uses as much as digits as its factorization.

166308827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61068.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 166308827 is about 12896.0779696774. The cubic root of 166308827 is about 549.9270724242.

The spelling of 166308827 in words is "one hundred sixty-six million, three hundred eight thousand, eight hundred twenty-seven".