2259965616 has 40 divisors (see below), whose sum is σ = 5840005680. Its totient is φ = 753094656.

The previous prime is 2259965581. The next prime is 2259965623. The reversal of 2259965616 is 6165699522.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248640 + ... + 257568.

It is an arithmetic number, because the mean of its divisors is an integer number (146000142).

Almost surely, 2^2259965616 is an apocalyptic number.

It is an amenable number.

2259965616 is an abundant number, since it is smaller than the sum of its proper divisors (3580040064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2259965616 is a wasteful number, since it uses less digits than its factorization.

2259965616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14213 (or 14207 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 51.

The square root of 2259965616 is about 47539.0956582054. The cubic root of 2259965616 is about 1312.3024628608.

The spelling of 2259965616 in words is "two billion, two hundred fifty-nine million, nine hundred sixty-five thousand, six hundred sixteen".