549066166 has 16 divisors (see below), whose sum is σ = 937536768. Its totient is φ = 238724200.

The previous prime is 549066163. The next prime is 549066169. The reversal of 549066166 is 661660945.

It is an interprime number because it is at equal distance from previous prime (549066163) and next prime (549066169).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549066163) 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, 542050 + ... + 543061.

It is an arithmetic number, because the mean of its divisors is an integer number (58596048).

Almost surely, 2^549066166 is an apocalyptic number.

549066166 is a deficient number, since it is larger than the sum of its proper divisors (388470602).

549066166 is a wasteful number, since it uses less digits than its factorization.

549066166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085147.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 549066166 is about 23432.1609332131. The cubic root of 549066166 is about 818.8573048491.

The spelling of 549066166 in words is "five hundred forty-nine million, sixty-six thousand, one hundred sixty-six".