166005527 has 32 divisors (see below), whose sum is σ = 194918400. Its totient is φ = 140313600.

The previous prime is 166005449. The next prime is 166005529. The reversal of 166005527 is 725500661.

It is a happy number.

166005527 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 166005527 - 2⁸ = 166005271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166005493 and 166005502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166005529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 590627 + ... + 590907.

It is an arithmetic number, because the mean of its divisors is an integer number (6091200).

Almost surely, 2^166005527 is an apocalyptic number.

166005527 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

166005527 is a deficient number, since it is larger than the sum of its proper divisors (28912873).

166005527 is a wasteful number, since it uses less digits than its factorization.

166005527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 166005527 is about 12884.3132141376. The cubic root of 166005527 is about 549.5925654687.

The spelling of 166005527 in words is "one hundred sixty-six million, five thousand, five hundred twenty-seven".