166227505 has 8 divisors (see below), whose sum is σ = 200001600. Its totient is φ = 132629616.

The previous prime is 166227499. The next prime is 166227533. The reversal of 166227505 is 505722661.

166227505 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 166227505 - 2¹⁷ = 166096433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41965 + ... + 45754.

It is an arithmetic number, because the mean of its divisors is an integer number (25000200).

Almost surely, 2^166227505 is an apocalyptic number.

It is an amenable number.

166227505 is a deficient number, since it is larger than the sum of its proper divisors (33774095).

166227505 is an equidigital number, since it uses as much as digits as its factorization.

166227505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88103.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 166227505 is about 12892.9246100332. The cubic root of 166227505 is about 549.8374230223.

The spelling of 166227505 in words is "one hundred sixty-six million, two hundred twenty-seven thousand, five hundred five".