16705678099 has 8 divisors (see below), whose sum is σ = 19296398448. Its totient is φ = 14293628160.

The previous prime is 16705678097. The next prime is 16705678109. The reversal of 16705678099 is 99087650761.

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

It is a cyclic number.

It is not a de Polignac number, because 16705678099 - 2¹ = 16705678097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16705678091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44667402 + ... + 44667775.

It is an arithmetic number, because the mean of its divisors is an integer number (2412049806).

Almost surely, 2^16705678099 is an apocalyptic number.

16705678099 is a deficient number, since it is larger than the sum of its proper divisors (2590720349).

16705678099 is a wasteful number, since it uses less digits than its factorization.

16705678099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89335205.

The product of its (nonzero) digits is 5715360, while the sum is 58.

The spelling of 16705678099 in words is "sixteen billion, seven hundred five million, six hundred seventy-eight thousand, ninety-nine".