16920798693478 has 8 divisors (see below), whose sum is σ = 26000251651080. Its totient is φ = 8254048143120.

The previous prime is 16920798693467. The next prime is 16920798693499. The reversal of 16920798693478 is 87439689702961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16920798693398 and 16920798693407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103175601708 + ... + 103175601871.

It is an arithmetic number, because the mean of its divisors is an integer number (3250031456385).

Almost surely, 2^{16920798693478} is an apocalyptic number.

16920798693478 is a deficient number, since it is larger than the sum of its proper divisors (9079452957602).

16920798693478 is a wasteful number, since it uses less digits than its factorization.

16920798693478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206351203622.

The product of its (nonzero) digits is 1975228416, while the sum is 79.

The spelling of 16920798693478 in words is "sixteen trillion, nine hundred twenty billion, seven hundred ninety-eight million, six hundred ninety-three thousand, four hundred seventy-eight".