16340380623 has 12 divisors (see below), whose sum is σ = 26974596688. Its totient is φ = 9337360320.

The previous prime is 16340380607. The next prime is 16340380649. The reversal of 16340380623 is 32608304361.

It is not a de Polignac number, because 16340380623 - 2⁴ = 16340380607 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 (16340380523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129685498 + ... + 129685623.

Almost surely, 2^16340380623 is an apocalyptic number.

16340380623 is a deficient number, since it is larger than the sum of its proper divisors (10634216065).

16340380623 is a wasteful number, since it uses less digits than its factorization.

16340380623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259371134 (or 259371131 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 16340380623 its reverse (32608304361), we get a palindrome (48948684984).

The spelling of 16340380623 in words is "sixteen billion, three hundred forty million, three hundred eighty thousand, six hundred twenty-three".