16436044065 has 32 divisors (see below), whose sum is σ = 30106679040. Its totient is φ = 7500570624.

The previous prime is 16436044061. The next prime is 16436044111. The reversal of 16436044065 is 56044063461.

It is not a de Polignac number, because 16436044065 - 2² = 16436044061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16436044061) 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, 75060 + ... + 196229.

It is an arithmetic number, because the mean of its divisors is an integer number (940833720).

Almost surely, 2^16436044065 is an apocalyptic number.

16436044065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16436044065 is a deficient number, since it is larger than the sum of its proper divisors (13670634975).

16436044065 is a wasteful number, since it uses less digits than its factorization.

16436044065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271881.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 16436044065 in words is "sixteen billion, four hundred thirty-six million, forty-four thousand, sixty-five".