166506602 has 16 divisors (see below), whose sum is σ = 269444232. Its totient is φ = 76876800.

The previous prime is 166506589. The next prime is 166506631. The reversal of 166506602 is 206605661.

166506602 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 164839921 + 1666681 = 12839^2 + 1291^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44399 + ... + 48002.

Almost surely, 2^166506602 is an apocalyptic number.

166506602 is a deficient number, since it is larger than the sum of its proper divisors (102937630).

166506602 is a wasteful number, since it uses less digits than its factorization.

166506602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92473.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 166506602 is about 12903.7437203317. The cubic root of 166506602 is about 550.1449777591.

The spelling of 166506602 in words is "one hundred sixty-six million, five hundred six thousand, six hundred two".