16396539073 has 4 divisors (see below), whose sum is σ = 16481495428. Its totient is φ = 16311582720.

The previous prime is 16396539059. The next prime is 16396539097. The reversal of 16396539073 is 37093569361.

16396539073 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 can be written as a sum of positive squares in 2 ways, for example, as 7654850064 + 8741689009 = 87492^2 + 93497^2 .

It is a cyclic number.

It is not a de Polignac number, because 16396539073 - 2¹⁷ = 16396408001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16396539073.

It is not an unprimeable number, because it can be changed into a prime (16396539053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42477888 + ... + 42478273.

It is an arithmetic number, because the mean of its divisors is an integer number (4120373857).

Almost surely, 2^16396539073 is an apocalyptic number.

It is an amenable number.

16396539073 is a deficient number, since it is larger than the sum of its proper divisors (84956355).

16396539073 is an equidigital number, since it uses as much as digits as its factorization.

16396539073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84956354.

The product of its (nonzero) digits is 2755620, while the sum is 52.

The spelling of 16396539073 in words is "sixteen billion, three hundred ninety-six million, five hundred thirty-nine thousand, seventy-three".