8416664020 has 24 divisors (see below), whose sum is σ = 17713188864. Its totient is φ = 3359390496.

The previous prime is 8416663963. The next prime is 8416664027. The reversal of 8416664020 is 204666148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8416664027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445204 + ... + 463723.

It is an arithmetic number, because the mean of its divisors is an integer number (738049536).

Almost surely, 2^8416664020 is an apocalyptic number.

It is an amenable number.

8416664020 is an abundant number, since it is smaller than the sum of its proper divisors (9296524844).

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

8416664020 is a wasteful number, since it uses less digits than its factorization.

8416664020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909399 (or 909397 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 8416664020 is about 91742.3785390372. The cubic root of 8416664020 is about 2034.1360518392.

The spelling of 8416664020 in words is "eight billion, four hundred sixteen million, six hundred sixty-four thousand, twenty".