8666406912 has 56 divisors (see below), whose sum is σ = 23109073416. Its totient is φ = 2888794112.

The previous prime is 8666406871. The next prime is 8666406929. The reversal of 8666406912 is 2196046668.

It is a happy number.

It is a super-2 number, since 2×8666406912² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151743 + ... + 200894.

Almost surely, 2^8666406912 is an apocalyptic number.

It is an amenable number.

8666406912 is an abundant number, since it is smaller than the sum of its proper divisors (14442666504).

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

8666406912 is an equidigital number, since it uses as much as digits as its factorization.

8666406912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352666 (or 352642 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 8666406912 is about 93093.5385083197. The cubic root of 8666406912 is about 2054.0595276263.

The spelling of 8666406912 in words is "eight billion, six hundred sixty-six million, four hundred six thousand, nine hundred twelve".