16442039999 has 16 divisors (see below), whose sum is σ = 20710507776. Its totient is φ = 12679891200.

The previous prime is 16442039953. The next prime is 16442040019. The reversal of 16442039999 is 99993024461.

It is a cyclic number.

It is not a de Polignac number, because 16442039999 - 2⁸ = 16442039743 is a prime.

It is a super-3 number, since 3×16442039999³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442039099) 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, 1093217 + ... + 1108154.

It is an arithmetic number, because the mean of its divisors is an integer number (1294406736).

Almost surely, 2^16442039999 is an apocalyptic number.

16442039999 is a deficient number, since it is larger than the sum of its proper divisors (4268467777).

16442039999 is a wasteful number, since it uses less digits than its factorization.

16442039999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201486.

The product of its (nonzero) digits is 3779136, while the sum is 56.

The spelling of 16442039999 in words is "sixteen billion, four hundred forty-two million, thirty-nine thousand, nine hundred ninety-nine".