99855255899 has 16 divisors (see below), whose sum is σ = 115584768000. Its totient is φ = 84492237024.

The previous prime is 99855255847. The next prime is 99855255931.

It is a happy number.

99855255899 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99855255899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99855257899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4255802 + ... + 4279200.

It is an arithmetic number, because the mean of its divisors is an integer number (7224048000).

Almost surely, 2^99855255899 is an apocalyptic number.

99855255899 is a deficient number, since it is larger than the sum of its proper divisors (15729512101).

99855255899 is a wasteful number, since it uses less digits than its factorization.

99855255899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31202.

The product of its digits is 524880000, while the sum is 74.

The spelling of 99855255899 in words is "ninety-nine billion, eight hundred fifty-five million, two hundred fifty-five thousand, eight hundred ninety-nine".