166709349 has 24 divisors (see below), whose sum is σ = 245261952. Its totient is φ = 109095840.

The previous prime is 166709339. The next prime is 166709393. The reversal of 166709349 is 943907661.

It is not a de Polignac number, because 166709349 - 2⁸ = 166709093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166709339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202152 + ... + 202974.

It is an arithmetic number, because the mean of its divisors is an integer number (10219248).

Almost surely, 2^166709349 is an apocalyptic number.

It is an amenable number.

166709349 is a deficient number, since it is larger than the sum of its proper divisors (78552603).

166709349 is a wasteful number, since it uses less digits than its factorization.

166709349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 166709349 is about 12911.5974611974. The cubic root of 166709349 is about 550.3681821259.

The spelling of 166709349 in words is "one hundred sixty-six million, seven hundred nine thousand, three hundred forty-nine".