166632285 has 16 divisors (see below), whose sum is σ = 275212800. Its totient is φ = 86003520.

The previous prime is 166632269. The next prime is 166632287. The reversal of 166632285 is 582236661.

It is not a de Polignac number, because 166632285 - 2⁴ = 166632269 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166632287) 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, 178710 + ... + 179639.

It is an arithmetic number, because the mean of its divisors is an integer number (17200800).

Almost surely, 2^166632285 is an apocalyptic number.

166632285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166632285 is a deficient number, since it is larger than the sum of its proper divisors (108580515).

166632285 is a wasteful number, since it uses less digits than its factorization.

166632285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358388.

The product of its digits is 103680, while the sum is 39.

The square root of 166632285 is about 12908.6128224531. The cubic root of 166632285 is about 550.2833636260.

The spelling of 166632285 in words is "one hundred sixty-six million, six hundred thirty-two thousand, two hundred eighty-five".