2160656663 has 16 divisors (see below), whose sum is σ = 2417294880. Its totient is φ = 1914163200.

The previous prime is 2160656657. The next prime is 2160656681. The reversal of 2160656663 is 3666560612.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2160656663 - 2²⁴ = 2143879447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 2160656663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160656683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501623 + ... + 505911.

It is an arithmetic number, because the mean of its divisors is an integer number (151080930).

Almost surely, 2^2160656663 is an apocalyptic number.

2160656663 is a deficient number, since it is larger than the sum of its proper divisors (256638217).

2160656663 is a wasteful number, since it uses less digits than its factorization.

2160656663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5458.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 2160656663 is about 46482.8641867086. The cubic root of 2160656663 is about 1292.7917949641.

The spelling of 2160656663 in words is "two billion, one hundred sixty million, six hundred fifty-six thousand, six hundred sixty-three".