16394764697399 has 24 divisors (see below), whose sum is σ = 18147177334944. Its totient is φ = 14799902374400.

The previous prime is 16394764697369. The next prime is 16394764697461. The reversal of 16394764697399 is 99379646749361.

It is not a de Polignac number, because 16394764697399 - 2¹⁶ = 16394764631863 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 (16394764697369) 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 23 ways as a sum of consecutive naturals, for example, 19327019 + ... + 20157459.

It is an arithmetic number, because the mean of its divisors is an integer number (756132388956).

Almost surely, 2^{16394764697399} is an apocalyptic number.

16394764697399 is a deficient number, since it is larger than the sum of its proper divisors (1752412637545).

16394764697399 is a wasteful number, since it uses less digits than its factorization.

16394764697399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831607 (or 831596 counting only the distinct ones).

The product of its digits is 9999593856, while the sum is 83.

The spelling of 16394764697399 in words is "sixteen trillion, three hundred ninety-four billion, seven hundred sixty-four million, six hundred ninety-seven thousand, three hundred ninety-nine".