2660544045 has 24 divisors (see below), whose sum is σ = 4615104312. Its totient is φ = 1417881600.

The previous prime is 2660544043. The next prime is 2660544077. The reversal of 2660544045 is 5404450662.

2660544045 is a `hidden beast` number, since 2 + 6 + 605 + 4 + 4 + 0 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8191044 + 2652353001 = 2862^2 + 51501^2 .

It is not a de Polignac number, because 2660544045 - 2¹ = 2660544043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660544043) 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, 39525 + ... + 82965.

It is an arithmetic number, because the mean of its divisors is an integer number (192296013).

Almost surely, 2^2660544045 is an apocalyptic number.

It is an amenable number.

2660544045 is a deficient number, since it is larger than the sum of its proper divisors (1954560267).

2660544045 is a wasteful number, since it uses less digits than its factorization.

2660544045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44813 (or 44810 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 2660544045 is about 51580.4618533026. The cubic root of 2660544045 is about 1385.6604382332.

The spelling of 2660544045 in words is "two billion, six hundred sixty million, five hundred forty-four thousand, forty-five".