166711049 has 8 divisors (see below), whose sum is σ = 171863520. Its totient is φ = 161636256.

The previous prime is 166711003. The next prime is 166711057. The reversal of 166711049 is 940117661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166711049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166711079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15047 + ... + 23660.

It is an arithmetic number, because the mean of its divisors is an integer number (21482940).

Almost surely, 2^166711049 is an apocalyptic number.

It is an amenable number.

166711049 is a deficient number, since it is larger than the sum of its proper divisors (5152471).

166711049 is an equidigital number, since it uses as much as digits as its factorization.

166711049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38839.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 166711049 is about 12911.6632933174. The cubic root of 166711049 is about 550.3700528923.

The spelling of 166711049 in words is "one hundred sixty-six million, seven hundred eleven thousand, forty-nine".