166144305 has 8 divisors (see below), whose sum is σ = 265830912. Its totient is φ = 88610288.

The previous prime is 166144301. The next prime is 166144327. The reversal of 166144305 is 503441661.

166144305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 166144305 - 2² = 166144301 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166144301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5538129 + ... + 5538158.

It is an arithmetic number, because the mean of its divisors is an integer number (33228864).

Almost surely, 2^166144305 is an apocalyptic number.

166144305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166144305 is a deficient number, since it is larger than the sum of its proper divisors (99686607).

166144305 is a wasteful number, since it uses less digits than its factorization.

166144305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11076295.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 166144305 is about 12889.6976302782. The cubic root of 166144305 is about 549.7456730477.

Adding to 166144305 its reverse (503441661), we get a palindrome (669585966).

The spelling of 166144305 in words is "one hundred sixty-six million, one hundred forty-four thousand, three hundred five".