99009000090098 has 64 divisors (see below), whose sum is σ = 183505384930560. Its totient is φ = 39109737627648.

The previous prime is 99009000090037. The next prime is 99009000090101. The reversal of 99009000090098 is 89009000090099.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132859586 + ... + 133602722.

It is an arithmetic number, because the mean of its divisors is an integer number (2867271639540).

Almost surely, 2^{99009000090098} is an apocalyptic number.

99009000090098 is a deficient number, since it is larger than the sum of its proper divisors (84496384840462).

99009000090098 is a wasteful number, since it uses less digits than its factorization.

99009000090098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756739.

The product of its (nonzero) digits is 472392, while the sum is 53.

Subtracting from 99009000090098 its reverse (89009000090099), we obtain a palindrome (9999999999999).

The spelling of 99009000090098 in words is "ninety-nine trillion, nine billion, ninety thousand, ninety-eight".