166532201 has 16 divisors (see below), whose sum is σ = 189641088. Its totient is φ = 144892800.

The previous prime is 166532189. The next prime is 166532203. The reversal of 166532201 is 102235661.

166532201 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 166532201 - 2⁶ = 166532137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166532203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20420 + ... + 27386.

It is an arithmetic number, because the mean of its divisors is an integer number (11852568).

Almost surely, 2^166532201 is an apocalyptic number.

166532201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

166532201 is a deficient number, since it is larger than the sum of its proper divisors (23108887).

166532201 is a wasteful number, since it uses less digits than its factorization.

166532201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072.

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

The square root of 166532201 is about 12904.7356036457. The cubic root of 166532201 is about 550.1731697135.

Adding to 166532201 its reverse (102235661), we get a palindrome (268767862).

The spelling of 166532201 in words is "one hundred sixty-six million, five hundred thirty-two thousand, two hundred one".