998152230528 has 192 divisors, whose sum is σ = 2973279722400. Its totient is φ = 321033775104.

The previous prime is 998152230527. The next prime is 998152230529. The reversal of 998152230528 is 825032251899.

It is a happy number.

998152230528 is a `hidden beast` number, since 9 + 9 + 81 + 5 + 2 + 2 + 30 + 528 = 666.

It is an interprime number because it is at equal distance from previous prime (998152230527) and next prime (998152230529).

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (998152230521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55682175 + ... + 55700097.

Almost surely, 2^998152230528 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 998152230528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1486639861200).

998152230528 is an abundant number, since it is smaller than the sum of its proper divisors (1975127491872).

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

998152230528 is a wasteful number, since it uses less digits than its factorization.

998152230528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19639 (or 19624 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 998152230528 in words is "nine hundred ninety-eight billion, one hundred fifty-two million, two hundred thirty thousand, five hundred twenty-eight".