166505214 has 16 divisors (see below), whose sum is σ = 333260928. Its totient is φ = 55459992.

The previous prime is 166505197. The next prime is 166505233. The reversal of 166505214 is 412505661.

166505214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162 + ... + 18285.

It is an arithmetic number, because the mean of its divisors is an integer number (20828808).

Almost surely, 2^166505214 is an apocalyptic number.

166505214 is an abundant number, since it is smaller than the sum of its proper divisors (166755714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166505214 is a wasteful number, since it uses less digits than its factorization.

166505214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20879.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 166505214 is about 12903.6899373784. The cubic root of 166505214 is about 550.1434490842.

The spelling of 166505214 in words is "one hundred sixty-six million, five hundred five thousand, two hundred fourteen".