16407599795999 has 4 divisors (see below), whose sum is σ = 16605281721336. Its totient is φ = 16209917870664.

The previous prime is 16407599795947. The next prime is 16407599796067. The reversal of 16407599795999 is 99959799570461.

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

It is a cyclic number.

It is not a de Polignac number, because 16407599795999 - 2¹² = 16407599791903 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 (16407599795399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98840962544 + ... + 98840962709.

It is an arithmetic number, because the mean of its divisors is an integer number (4151320430334).

Almost surely, 2^{16407599795999} is an apocalyptic number.

16407599795999 is a deficient number, since it is larger than the sum of its proper divisors (197681925337).

16407599795999 is an equidigital number, since it uses as much as digits as its factorization.

16407599795999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197681925336.

The product of its (nonzero) digits is 15624365400, while the sum is 89.

The spelling of 16407599795999 in words is "sixteen trillion, four hundred seven billion, five hundred ninety-nine million, seven hundred ninety-five thousand, nine hundred ninety-nine".