16440073799 has 2 divisors, whose sum is σ = 16440073800. Its totient is φ = 16440073798.

The previous prime is 16440073787. The next prime is 16440073823. The reversal of 16440073799 is 99737004461.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (99737004461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16440073799 is a prime.

It is a super-3 number, since 3×16440073799³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16440073709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8220036899 + 8220036900.

It is an arithmetic number, because the mean of its divisors is an integer number (8220036900).

Almost surely, 2^16440073799 is an apocalyptic number.

16440073799 is a deficient number, since it is larger than the sum of its proper divisors (1).

16440073799 is an equidigital number, since it uses as much as digits as its factorization.

16440073799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 16440073799 in words is "sixteen billion, four hundred forty million, seventy-three thousand, seven hundred ninety-nine".