166382749 has 8 divisors (see below), whose sum is σ = 181706112. Its totient is φ = 151420080.

The previous prime is 166382743. The next prime is 166382761. The reversal of 166382749 is 947283661.

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 166382749 - 2¹⁷ = 166251677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166382699 and 166382708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166382743) 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, 89209 + ... + 91054.

It is an arithmetic number, because the mean of its divisors is an integer number (22713264).

Almost surely, 2^166382749 is an apocalyptic number.

It is an amenable number.

166382749 is a deficient number, since it is larger than the sum of its proper divisors (15323363).

166382749 is a wasteful number, since it uses less digits than its factorization.

166382749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180347.

The product of its digits is 435456, while the sum is 46.

The square root of 166382749 is about 12898.9437164444. The cubic root of 166382749 is about 550.0085387104.

The spelling of 166382749 in words is "one hundred sixty-six million, three hundred eighty-two thousand, seven hundred forty-nine".