99000900100 has 72 divisors (see below), whose sum is σ = 221530571136. Its totient is φ = 38378400000.

The previous prime is 99000900073. The next prime is 99000900121. The reversal of 99000900100 is 100900099.

It is a super-2 number, since 2×99000900100² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 539145 + ... + 699055.

It is an arithmetic number, because the mean of its divisors is an integer number (3076813488).

Almost surely, 2^99000900100 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 99000900100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110765285568).

99000900100 is an abundant number, since it is smaller than the sum of its proper divisors (122529671036).

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

99000900100 is a wasteful number, since it uses less digits than its factorization.

99000900100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160117 (or 160110 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 28.

The spelling of 99000900100 in words is "ninety-nine billion, nine hundred thousand, one hundred".