99534255243599 has 32 divisors (see below), whose sum is σ = 117178469856000. Its totient is φ = 83566033516800.

The previous prime is 99534255243547. The next prime is 99534255243611.

99534255243599 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 99534255243599 - 2¹⁶ = 99534255178063 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 (99534255243509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6175337 + ... + 15401405.

It is an arithmetic number, because the mean of its divisors is an integer number (3661827183000).

Almost surely, 2^{99534255243599} is an apocalyptic number.

99534255243599 is a deficient number, since it is larger than the sum of its proper divisors (17644214612401).

99534255243599 is a wasteful number, since it uses less digits than its factorization.

99534255243599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9227399.

The product of its digits is 2361960000, while the sum is 74.

The spelling of 99534255243599 in words is "ninety-nine trillion, five hundred thirty-four billion, two hundred fifty-five million, two hundred forty-three thousand, five hundred ninety-nine".