166448805 has 8 divisors (see below), whose sum is σ = 266318112. Its totient is φ = 88772688.

The previous prime is 166448801. The next prime is 166448851. The reversal of 166448805 is 508844661.

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

It is not a de Polignac number, because 166448805 - 2² = 166448801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166448801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5548279 + ... + 5548308.

It is an arithmetic number, because the mean of its divisors is an integer number (33289764).

Almost surely, 2^166448805 is an apocalyptic number.

166448805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166448805 is a deficient number, since it is larger than the sum of its proper divisors (99869307).

166448805 is a wasteful number, since it uses less digits than its factorization.

166448805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11096595.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 166448805 is about 12901.5039820945. The cubic root of 166448805 is about 550.0813158008.

The spelling of 166448805 in words is "one hundred sixty-six million, four hundred forty-eight thousand, eight hundred five".