16694434493 has 12 divisors (see below), whose sum is σ = 19315877280. Its totient is φ = 14377979880.

The previous prime is 16694434457. The next prime is 16694434499. The reversal of 16694434493 is 39443449661.

It is not a de Polignac number, because 16694434493 - 2⁶ = 16694434429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16694434499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3628505 + ... + 3633102.

It is an arithmetic number, because the mean of its divisors is an integer number (1609656440).

Almost surely, 2^16694434493 is an apocalyptic number.

It is an amenable number.

16694434493 is a deficient number, since it is larger than the sum of its proper divisors (2621442787).

16694434493 is a wasteful number, since it uses less digits than its factorization.

16694434493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7261648 (or 7261637 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 53.

The spelling of 16694434493 in words is "sixteen billion, six hundred ninety-four million, four hundred thirty-four thousand, four hundred ninety-three".