99808641503 has 4 divisors (see below), whose sum is σ = 105679738080. Its totient is φ = 93937544928.

The previous prime is 99808641437. The next prime is 99808641521. The reversal of 99808641503 is 30514680899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30514680899 = 1069 ⋅28545071.

It is a cyclic number.

It is not a de Polignac number, because 99808641503 - 2²² = 99804447199 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 (99808641523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2935548263 + ... + 2935548296.

It is an arithmetic number, because the mean of its divisors is an integer number (26419934520).

Almost surely, 2^99808641503 is an apocalyptic number.

99808641503 is a deficient number, since it is larger than the sum of its proper divisors (5871096577).

99808641503 is a wasteful number, since it uses less digits than its factorization.

99808641503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871096576.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 99808641503 in words is "ninety-nine billion, eight hundred eight million, six hundred forty-one thousand, five hundred three".