16320783619 has 4 divisors (see below), whose sum is σ = 18652324144. Its totient is φ = 13989243096.

The previous prime is 16320783553. The next prime is 16320783637. The reversal of 16320783619 is 91638702361.

16320783619 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, and also an emirpimes, since its reverse is a distinct semiprime: 91638702361 = 23 ⋅3984291407.

It is a cyclic number.

It is not a de Polignac number, because 16320783619 - 2⁹ = 16320783107 is a prime.

It is a super-2 number, since 2×16320783619² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16320783119) 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, 1165770252 + ... + 1165770265.

It is an arithmetic number, because the mean of its divisors is an integer number (4663081036).

Almost surely, 2^16320783619 is an apocalyptic number.

16320783619 is a deficient number, since it is larger than the sum of its proper divisors (2331540525).

16320783619 is an equidigital number, since it uses as much as digits as its factorization.

16320783619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331540524.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 16320783619 in words is "sixteen billion, three hundred twenty million, seven hundred eighty-three thousand, six hundred nineteen".