16994396788 has 48 divisors (see below), whose sum is σ = 31708164096. Its totient is φ = 7957198080.

The previous prime is 16994396767. The next prime is 16994396849. The reversal of 16994396788 is 88769349961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462045 + ... + 497467.

It is an arithmetic number, because the mean of its divisors is an integer number (660586752).

Almost surely, 2^16994396788 is an apocalyptic number.

It is an amenable number.

16994396788 is a deficient number, since it is larger than the sum of its proper divisors (14713767308).

16994396788 is a wasteful number, since it uses less digits than its factorization.

16994396788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35584 (or 35582 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 70.

The spelling of 16994396788 in words is "sixteen billion, nine hundred ninety-four million, three hundred ninety-six thousand, seven hundred eighty-eight".