99345668537897 has 4 divisors (see below), whose sum is σ = 99345690353040. Its totient is φ = 99345646722756.

The previous prime is 99345668537893. The next prime is 99345668537903. The reversal of 99345668537897 is 79873586654399.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99345668537897 - 2² = 99345668537893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99345668537891) 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, 1191983 + ... + 14146100.

It is an arithmetic number, because the mean of its divisors is an integer number (24836422588260).

Almost surely, 2^{99345668537897} is an apocalyptic number.

It is an amenable number.

99345668537897 is a deficient number, since it is larger than the sum of its proper divisors (21815143).

99345668537897 is a wasteful number, since it uses less digits than its factorization.

99345668537897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21815142.

The product of its digits is 74071065600, while the sum is 89.

The spelling of 99345668537897 in words is "ninety-nine trillion, three hundred forty-five billion, six hundred sixty-eight million, five hundred thirty-seven thousand, eight hundred ninety-seven".