99899099899 has 16 divisors (see below), whose sum is σ = 101541762144. Its totient is φ = 98271360000.

The previous prime is 99899099887. The next prime is 99899099917.

99899099899 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 99899099899 - 2¹³ = 99899091707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99899091899) 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, 10084849 + ... + 10094749.

It is an arithmetic number, because the mean of its divisors is an integer number (6346360134).

Almost surely, 2^99899099899 is an apocalyptic number.

99899099899 is a deficient number, since it is larger than the sum of its proper divisors (1642662245).

99899099899 is a wasteful number, since it uses less digits than its factorization.

99899099899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10638.

The product of its (nonzero) digits is 2754990144, while the sum is 88.

The spelling of 99899099899 in words is "ninety-nine billion, eight hundred ninety-nine million, ninety-nine thousand, eight hundred ninety-nine".