166526 has 8 divisors (see below), whose sum is σ = 254664. Its totient is φ = 81640.

The previous prime is 166487. The next prime is 166541. The reversal of 166526 is 625661.

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

It is a junction number, because it is equal to n+sod(n) for n = 166495 and 166504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680 + ... + 891.

It is an arithmetic number, because the mean of its divisors is an integer number (31833).

2¹⁶⁶⁵²⁶ is an apocalyptic number.

166526 is a deficient number, since it is larger than the sum of its proper divisors (88138).

166526 is a wasteful number, since it uses less digits than its factorization.

166526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626.

The product of its digits is 2160, while the sum is 26.

The square root of 166526 is about 408.0759733187. The cubic root of 166526 is about 55.0166340872.

The spelling of 166526 in words is "one hundred sixty-six thousand, five hundred twenty-six".