156166 has 8 divisors (see below), whose sum is σ = 236664. Its totient is φ = 77280.

The previous prime is 156157. The next prime is 156217. The reversal of 156166 is 661651.

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

It is a self number, because there is not a number n which added to its sum of digits gives 156166.

It is a congruent number.

It is an unprimeable number.

156166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120 + ... + 571.

It is an arithmetic number, because the mean of its divisors is an integer number (29583).

2¹⁵⁶¹⁶⁶ is an apocalyptic number.

156166 is a deficient number, since it is larger than the sum of its proper divisors (80498).

156166 is a wasteful number, since it uses less digits than its factorization.

156166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806.

The product of its digits is 1080, while the sum is 25.

The square root of 156166 is about 395.1784407075. The cubic root of 156166 is about 53.8512136533.

The spelling of 156166 in words is "one hundred fifty-six thousand, one hundred sixty-six".