99208994455 has 4 divisors (see below), whose sum is σ = 119050793352. Its totient is φ = 79367195560.

The previous prime is 99208994453. The next prime is 99208994459. The reversal of 99208994455 is 55449980299.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 99208994455 - 2¹ = 99208994453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99208994453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9920899441 + ... + 9920899450.

It is an arithmetic number, because the mean of its divisors is an integer number (29762698338).

Almost surely, 2^99208994455 is an apocalyptic number.

99208994455 is a deficient number, since it is larger than the sum of its proper divisors (19841798897).

99208994455 is a wasteful number, since it uses less digits than its factorization.

99208994455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19841798896.

The product of its (nonzero) digits is 41990400, while the sum is 64.

The spelling of 99208994455 in words is "ninety-nine billion, two hundred eight million, nine hundred ninety-four thousand, four hundred fifty-five".