16493396539 has 2 divisors, whose sum is σ = 16493396540. Its totient is φ = 16493396538.

The previous prime is 16493396537. The next prime is 16493396587. The reversal of 16493396539 is 93569339461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16493396539 - 2¹ = 16493396537 is a prime.

Together with 16493396537, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16493396537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8246698269 + 8246698270.

It is an arithmetic number, because the mean of its divisors is an integer number (8246698270).

Almost surely, 2^16493396539 is an apocalyptic number.

16493396539 is a deficient number, since it is larger than the sum of its proper divisors (1).

16493396539 is an equidigital number, since it uses as much as digits as its factorization.

16493396539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14171760, while the sum is 58.

The spelling of 16493396539 in words is "sixteen billion, four hundred ninety-three million, three hundred ninety-six thousand, five hundred thirty-nine".