166694349 has 8 divisors (see below), whose sum is σ = 229923360. Its totient is φ = 107297456.

The previous prime is 166694329. The next prime is 166694351. The reversal of 166694349 is 943496661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166694349 - 2⁹ = 166693837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166694298 and 166694307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166694309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957927 + ... + 958100.

It is an arithmetic number, because the mean of its divisors is an integer number (28740420).

Almost surely, 2^166694349 is an apocalyptic number.

It is an amenable number.

166694349 is a deficient number, since it is larger than the sum of its proper divisors (63229011).

166694349 is a wasteful number, since it uses less digits than its factorization.

166694349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916059.

The product of its digits is 839808, while the sum is 48.

The square root of 166694349 is about 12911.0165750029. The cubic root of 166694349 is about 550.3516748126.

The spelling of 166694349 in words is "one hundred sixty-six million, six hundred ninety-four thousand, three hundred forty-nine".