99985918230 has 96 divisors (see below), whose sum is σ = 283778490528. Its totient is φ = 24223449600.

The previous prime is 99985918139. The next prime is 99985918237. The reversal of 99985918230 is 3281958999.

99985918230 is a `hidden beast` number, since 9 + 9 + 9 + 8 + 591 + 8 + 2 + 30 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99985918237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1549410 + ... + 1612650.

It is an arithmetic number, because the mean of its divisors is an integer number (2956025943).

Almost surely, 2^99985918230 is an apocalyptic number.

99985918230 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a pronic number, being equal to 316205×316206.

It is a practical number, because each smaller number is the sum of distinct divisors of 99985918230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141889245264).

99985918230 is an abundant number, since it is smaller than the sum of its proper divisors (183792572298).

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

99985918230 is a wasteful number, since it uses less digits than its factorization.

99985918230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64862 (or 64859 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 63.

The spelling of 99985918230 in words is "ninety-nine billion, nine hundred eighty-five million, nine hundred eighteen thousand, two hundred thirty".