99715899851799 has 16 divisors (see below), whose sum is σ = 165761495857920. Its totient is φ = 51800467455360.

The previous prime is 99715899851681. The next prime is 99715899851807.

99715899851799 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99715899851799 - 2¹² = 99715899847703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99715899851299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215835280834 + ... + 215835281295.

It is an arithmetic number, because the mean of its divisors is an integer number (10360093491120).

Almost surely, 2^{99715899851799} is an apocalyptic number.

99715899851799 is a deficient number, since it is larger than the sum of its proper divisors (66045596006121).

99715899851799 is a wasteful number, since it uses less digits than its factorization.

99715899851799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431670562150.

The product of its digits is 41664974400, while the sum is 96.

The spelling of 99715899851799 in words is "ninety-nine trillion, seven hundred fifteen billion, eight hundred ninety-nine million, eight hundred fifty-one thousand, seven hundred ninety-nine".