2144145555 has 24 divisors (see below), whose sum is σ = 3722689152. Its totient is φ = 1141645824.

The previous prime is 2144145529. The next prime is 2144145559. The reversal of 2144145555 is 5555414412.

2144145555 is a `hidden beast` number, since 21 + 4 + 41 + 45 + 555 = 666.

It is not a de Polignac number, because 2144145555 - 2¹³ = 2144137363 is a prime.

It is a super-2 number, since 2×2144145555² = 9194720322052516050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2144145559) 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 23 ways as a sum of consecutive naturals, for example, 11934 + ... + 66563.

It is an arithmetic number, because the mean of its divisors is an integer number (155112048).

Almost surely, 2^2144145555 is an apocalyptic number.

2144145555 is a deficient number, since it is larger than the sum of its proper divisors (1578543597).

2144145555 is a wasteful number, since it uses less digits than its factorization.

2144145555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79115 (or 79112 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The square root of 2144145555 is about 46304.9193390940. The cubic root of 2144145555 is about 1289.4903250662.

Adding to 2144145555 its reverse (5555414412), we get a palindrome (7699559967).

The spelling of 2144145555 in words is "two billion, one hundred forty-four million, one hundred forty-five thousand, five hundred fifty-five".