166500158 has 16 divisors (see below), whose sum is σ = 275740416. Its totient is φ = 74769240.

The previous prime is 166500143. The next prime is 166500203. The reversal of 166500158 is 851005661.

It is a happy number.

It is a super-2 number, since 2×166500158² = 55444605228049928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 43766 + ... + 47417.

It is an arithmetic number, because the mean of its divisors is an integer number (17233776).

Almost surely, 2^166500158 is an apocalyptic number.

166500158 is a deficient number, since it is larger than the sum of its proper divisors (109240258).

166500158 is a wasteful number, since it uses less digits than its factorization.

166500158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91279.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 166500158 is about 12903.4940229381. The cubic root of 166500158 is about 550.1378805831.

The spelling of 166500158 in words is "one hundred sixty-six million, five hundred thousand, one hundred fifty-eight".