2164653888 has 56 divisors (see below), whose sum is σ = 6028761120. Its totient is φ = 683573760.

The previous prime is 2164653863. The next prime is 2164653919. The reversal of 2164653888 is 8883564612.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2164653888.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 293043 + ... + 300338.

Almost surely, 2^2164653888 is an apocalyptic number.

It is an amenable number.

2164653888 is an abundant number, since it is smaller than the sum of its proper divisors (3864107232).

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

2164653888 is a wasteful number, since it uses less digits than its factorization.

2164653888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593415 (or 593405 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The square root of 2164653888 is about 46525.8410778354. The cubic root of 2164653888 is about 1293.5885274822.

The spelling of 2164653888 in words is "two billion, one hundred sixty-four million, six hundred fifty-three thousand, eight hundred eighty-eight".