5665623168 has 32 divisors (see below), whose sum is σ = 15049312560. Its totient is φ = 1888540928.

The previous prime is 5665623163. The next prime is 5665623169. The reversal of 5665623168 is 8613265665.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (5665623163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7376730 + ... + 7377497.

Almost surely, 2^5665623168 is an apocalyptic number.

It is an amenable number.

5665623168 is an abundant number, since it is smaller than the sum of its proper divisors (9383689392).

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

5665623168 is a wasteful number, since it uses less digits than its factorization.

5665623168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14754244 (or 14754232 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 48.

The square root of 5665623168 is about 75270.3339171549. Note that the first 3 decimals coincide. The cubic root of 5665623168 is about 1782.7176397139.

The spelling of 5665623168 in words is "five billion, six hundred sixty-five million, six hundred twenty-three thousand, one hundred sixty-eight".