9906455472 has 80 divisors (see below), whose sum is σ = 25964623872. Its totient is φ = 3254352640.

The previous prime is 9906455431. The next prime is 9906455491. The reversal of 9906455472 is 2745546099.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1006897 + ... + 1016687.

Almost surely, 2^9906455472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9906455472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12982311936).

9906455472 is an abundant number, since it is smaller than the sum of its proper divisors (16058168400).

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

9906455472 is a wasteful number, since it uses less digits than its factorization.

9906455472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106 (or 10100 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The square root of 9906455472 is about 99531.1783914970. The cubic root of 9906455472 is about 2147.6957806693.

The spelling of 9906455472 in words is "nine billion, nine hundred six million, four hundred fifty-five thousand, four hundred seventy-two".