2663654564 has 24 divisors (see below), whose sum is σ = 4870824000. Its totient is φ = 1272151584.

The previous prime is 2663654561. The next prime is 2663654659. The reversal of 2663654564 is 4654563662.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2663654561) 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 7 ways as a sum of consecutive naturals, for example, 47687 + ... + 87185.

It is an arithmetic number, because the mean of its divisors is an integer number (202951000).

Almost surely, 2^2663654564 is an apocalyptic number.

It is an amenable number.

2663654564 is a deficient number, since it is larger than the sum of its proper divisors (2207169436).

2663654564 is a wasteful number, since it uses less digits than its factorization.

2663654564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40259 (or 40257 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 47.

The square root of 2663654564 is about 51610.6051504921. The cubic root of 2663654564 is about 1386.2002331575.

The spelling of 2663654564 in words is "two billion, six hundred sixty-three million, six hundred fifty-four thousand, five hundred sixty-four".