99701255808 has 512 divisors, whose sum is σ = 375440947200. Its totient is φ = 25291284480.

The previous prime is 99701255791. The next prime is 99701255809. The reversal of 99701255808 is 80855210799.

99701255808 is a `hidden beast` number, since 9 + 9 + 70 + 12 + 558 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (99701255809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11438460 + ... + 11447172.

It is an arithmetic number, because the mean of its divisors is an integer number (733283100).

Almost surely, 2^99701255808 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 99701255808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187720473600).

99701255808 is an abundant number, since it is smaller than the sum of its proper divisors (275739691392).

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

99701255808 is a wasteful number, since it uses less digits than its factorization.

99701255808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8797 (or 8779 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 54.

The spelling of 99701255808 in words is "ninety-nine billion, seven hundred one million, two hundred fifty-five thousand, eight hundred eight".