2164416656 has 20 divisors (see below), whose sum is σ = 4375886592. Its totient is φ = 1035155616.

The previous prime is 2164416649. The next prime is 2164416697. The reversal of 2164416656 is 6566144612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2940416 + ... + 2941151.

Almost surely, 2^2164416656 is an apocalyptic number.

It is an amenable number.

2164416656 is an abundant number, since it is smaller than the sum of its proper divisors (2211469936).

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

2164416656 is a wasteful number, since it uses less digits than its factorization.

2164416656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5881598 (or 5881592 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 2164416656 is about 46523.2915430540. The cubic root of 2164416656 is about 1293.5412694569.

The spelling of 2164416656 in words is "two billion, one hundred sixty-four million, four hundred sixteen thousand, six hundred fifty-six".