2645560144 has 20 divisors (see below), whose sum is σ = 5127414880. Its totient is φ = 1322356320.

The previous prime is 2645560139. The next prime is 2645560147. The reversal of 2645560144 is 4410655462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645560147) by changing a digit.

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, 28477 + ... + 78115.

It is an arithmetic number, because the mean of its divisors is an integer number (256370744).

Almost surely, 2^2645560144 is an apocalyptic number.

It is an amenable number.

2645560144 is a deficient number, since it is larger than the sum of its proper divisors (2481854736).

2645560144 is a wasteful number, since it uses less digits than its factorization.

2645560144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52978 (or 52972 counting only the distinct ones).

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

The square root of 2645560144 is about 51435.0089336047. The cubic root of 2645560144 is about 1383.0542420980.

The spelling of 2645560144 in words is "two billion, six hundred forty-five million, five hundred sixty thousand, one hundred forty-four".