2144520166 has 8 divisors (see below), whose sum is σ = 3291589224. Its totient is φ = 1047323760.

The previous prime is 2144520163. The next prime is 2144520179. The reversal of 2144520166 is 6610254412.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144520163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12468055 + ... + 12468226.

It is an arithmetic number, because the mean of its divisors is an integer number (411448653).

Almost surely, 2^2144520166 is an apocalyptic number.

2144520166 is a deficient number, since it is larger than the sum of its proper divisors (1147069058).

2144520166 is a wasteful number, since it uses less digits than its factorization.

2144520166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24936326.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2144520166 is about 46308.9642078075. The cubic root of 2144520166 is about 1289.5654177808.

Adding to 2144520166 its reverse (6610254412), we get a palindrome (8754774578).

The spelling of 2144520166 in words is "two billion, one hundred forty-four million, five hundred twenty thousand, one hundred sixty-six".