8664995808 has 72 divisors (see below), whose sum is σ = 28161242928. Its totient is φ = 2475712512.

The previous prime is 8664995803. The next prime is 8664995851. The reversal of 8664995808 is 8085994668.

8664995808 is a `hidden beast` number, since 8 + 6 + 6 + 49 + 9 + 580 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8664995803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2147041 + ... + 2151072.

It is an arithmetic number, because the mean of its divisors is an integer number (391128374).

Almost surely, 2^8664995808 is an apocalyptic number.

It is an amenable number.

8664995808 is an abundant number, since it is smaller than the sum of its proper divisors (19496247120).

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

8664995808 is a wasteful number, since it uses less digits than its factorization.

8664995808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298136 (or 4298125 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The square root of 8664995808 is about 93085.9592419824. The cubic root of 8664995808 is about 2053.9480377868.

The spelling of 8664995808 in words is "eight billion, six hundred sixty-four million, nine hundred ninety-five thousand, eight hundred eight".