166444244000 has 48 divisors (see below), whose sum is σ = 408953517336. Its totient is φ = 66577696000.

The previous prime is 166444243939. The next prime is 166444244027. The reversal of 166444244000 is 442444661.

It can be written as a sum of positive squares in 4 ways, for example, as 12507290896 + 153936953104 = 111836^2 + 392348^2 .

It is a super-3 number, since 3×166444244000³ (a number of 35 digits) contains 333 as substring.

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, 20801531 + ... + 20809530.

Almost surely, 2^166444244000 is an apocalyptic number.

166444244000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166444244000 is an abundant number, since it is smaller than the sum of its proper divisors (242509273336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166444244000 is an equidigital number, since it uses as much as digits as its factorization.

166444244000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41611086 (or 41611068 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 166444244000 its reverse (442444661), we get a palindrome (166886688661).

The spelling of 166444244000 in words is "one hundred sixty-six billion, four hundred forty-four million, two hundred forty-four thousand".