16435909112999 has 4 divisors (see below), whose sum is σ = 16439146445064. Its totient is φ = 16432671780936.

The previous prime is 16435909112951. The next prime is 16435909113067. The reversal of 16435909112999 is 99921190953461.

16435909112999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16435909112999 - 2²⁰ = 16435908064423 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 (16435909112929) 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, 1618658417 + ... + 1618668570.

It is an arithmetic number, because the mean of its divisors is an integer number (4109786611266).

Almost surely, 2^{16435909112999} is an apocalyptic number.

16435909112999 is a deficient number, since it is larger than the sum of its proper divisors (3237332065).

16435909112999 is an equidigital number, since it uses as much as digits as its factorization.

16435909112999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237332064.

The product of its (nonzero) digits is 42515280, while the sum is 68.

The spelling of 16435909112999 in words is "sixteen trillion, four hundred thirty-five billion, nine hundred nine million, one hundred twelve thousand, nine hundred ninety-nine".