2144623016 has 8 divisors (see below), whose sum is σ = 4021168170. Its totient is φ = 1072311504.

The previous prime is 2144623009. The next prime is 2144623031. The reversal of 2144623016 is 6103264412.

It can be written as a sum of positive squares in only one way, i.e., 1734722500 + 409900516 = 41650^2 + 20246^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2144623016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134038931 + ... + 134038946.

Almost surely, 2^2144623016 is an apocalyptic number.

It is an amenable number.

2144623016 is a deficient number, since it is larger than the sum of its proper divisors (1876545154).

2144623016 is a wasteful number, since it uses less digits than its factorization.

2144623016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268077883 (or 268077879 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2144623016 is about 46310.0746706373. The cubic root of 2144623016 is about 1289.5860330658.

Adding to 2144623016 its reverse (6103264412), we get a palindrome (8247887428).

The spelling of 2144623016 in words is "two billion, one hundred forty-four million, six hundred twenty-three thousand, sixteen".