2544665122 has 8 divisors (see below), whose sum is σ = 3982954176. Its totient is φ = 1217013732.

The previous prime is 2544665113. The next prime is 2544665143. The reversal of 2544665122 is 2215664452.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27659358 + ... + 27659449.

It is an arithmetic number, because the mean of its divisors is an integer number (497869272).

Almost surely, 2^2544665122 is an apocalyptic number.

2544665122 is a deficient number, since it is larger than the sum of its proper divisors (1438289054).

2544665122 is a wasteful number, since it uses less digits than its factorization.

2544665122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55318832.

The product of its digits is 115200, while the sum is 37.

The square root of 2544665122 is about 50444.6738714802. The cubic root of 2544665122 is about 1365.2437983583.

The spelling of 2544665122 in words is "two billion, five hundred forty-four million, six hundred sixty-five thousand, one hundred twenty-two".