166550346 has 12 divisors (see below), whose sum is σ = 360859122. Its totient is φ = 55516776.

The previous prime is 166550341. The next prime is 166550353. The reversal of 166550346 is 643055661.

166550346 is a `hidden beast` number, since 1 + 66 + 550 + 3 + 46 = 666.

It can be written as a sum of positive squares in only one way, i.e., 132503121 + 34047225 = 11511^2 + 5835^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 166550346.

It is not an unprimeable number, because it can be changed into a prime (166550341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4626381 + ... + 4626416.

Almost surely, 2^166550346 is an apocalyptic number.

166550346 is an abundant number, since it is smaller than the sum of its proper divisors (194308776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166550346 is a wasteful number, since it uses less digits than its factorization.

166550346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9252805 (or 9252802 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 166550346 is about 12905.4386209846. The cubic root of 166550346 is about 550.1931508934.

The spelling of 166550346 in words is "one hundred sixty-six million, five hundred fifty thousand, three hundred forty-six".