9999342080 has 160 divisors (see below), whose sum is σ = 29508361344. Its totient is φ = 3164553216.

The previous prime is 9999342061. The next prime is 9999342109. The reversal of 9999342080 is 802439999.

It is a tau number, because it is divible by the number of its divisors (160).

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, 211499 + ... + 254421.

Almost surely, 2^9999342080 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 9999342080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14754180672).

9999342080 is an abundant number, since it is smaller than the sum of its proper divisors (19509019264).

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

9999342080 is a wasteful number, since it uses less digits than its factorization.

9999342080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42966 (or 42950 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 53.

The square root of 9999342080 is about 99996.7103458909. The cubic root of 9999342080 is about 2154.3874408066.

The spelling of 9999342080 in words is "nine billion, nine hundred ninety-nine million, three hundred forty-two thousand, eighty".