16680663715086 has 256 divisors, whose sum is σ = 44946517524480. Its totient is φ = 4482326471040.

The previous prime is 16680663715081. The next prime is 16680663715151. The reversal of 16680663715086 is 68051736608661.

16680663715086 is a `hidden beast` number, since 1 + 6 + 6 + 80 + 66 + 371 + 50 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16680663715081) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2430517291 + ... + 2430524153.

It is an arithmetic number, because the mean of its divisors is an integer number (175572334080).

Almost surely, 2^{16680663715086} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16680663715086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22473258762240).

16680663715086 is an abundant number, since it is smaller than the sum of its proper divisors (28265853809394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16680663715086 is a wasteful number, since it uses less digits than its factorization.

16680663715086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11548 (or 11542 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 16680663715086 in words is "sixteen trillion, six hundred eighty billion, six hundred sixty-three million, seven hundred fifteen thousand, eighty-six".