8998558996 has 48 divisors (see below), whose sum is σ = 18357736320. Its totient is φ = 3779418240.

The previous prime is 8998558967. The next prime is 8998558997. The reversal of 8998558996 is 6998558998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8998558997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1512195 + ... + 1518133.

It is an arithmetic number, because the mean of its divisors is an integer number (382452840).

Almost surely, 2^8998558996 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 8998558996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9178868160).

8998558996 is an abundant number, since it is smaller than the sum of its proper divisors (9359177324).

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

8998558996 is a wasteful number, since it uses less digits than its factorization.

8998558996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024 (or 7022 counting only the distinct ones).

The product of its digits is 503884800, while the sum is 76.

The square root of 8998558996 is about 94860.7347430959. The cubic root of 8998558996 is about 2079.9728019742.

The spelling of 8998558996 in words is "eight billion, nine hundred ninety-eight million, five hundred fifty-eight thousand, nine hundred ninety-six".