166244319 has 24 divisors (see below), whose sum is σ = 262138240. Its totient is φ = 104993496.

The previous prime is 166244303. The next prime is 166244333. The reversal of 166244319 is 913442661.

166244319 is a `hidden beast` number, since 16 + 624 + 4 + 3 + 19 = 666.

It is not a de Polignac number, because 166244319 - 2⁴ = 166244303 is a prime.

It is a super-2 number, since 2×166244319² = 55274347199547522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166244339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13387 + ... + 22620.

Almost surely, 2^166244319 is an apocalyptic number.

166244319 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

166244319 is a deficient number, since it is larger than the sum of its proper divisors (95893921).

166244319 is an equidigital number, since it uses as much as digits as its factorization.

166244319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36041 (or 36029 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 166244319 is about 12893.5766566147. The cubic root of 166244319 is about 549.8559611792.

The spelling of 166244319 in words is "one hundred sixty-six million, two hundred forty-four thousand, three hundred nineteen".