166515214 has 4 divisors (see below), whose sum is σ = 249772824. Its totient is φ = 83257606.

The previous prime is 166515197. The next prime is 166515233. The reversal of 166515214 is 412515661.

166515214 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41628802 + ... + 41628805.

It is an arithmetic number, because the mean of its divisors is an integer number (62443206).

Almost surely, 2^166515214 is an apocalyptic number.

166515214 is a deficient number, since it is larger than the sum of its proper divisors (83257610).

166515214 is an equidigital number, since it uses as much as digits as its factorization.

166515214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83257609.

The product of its digits is 7200, while the sum is 31.

The square root of 166515214 is about 12904.0774176227. The cubic root of 166515214 is about 550.1544624017.

The spelling of 166515214 in words is "one hundred sixty-six million, five hundred fifteen thousand, two hundred fourteen".