16660775334715 has 32 divisors (see below), whose sum is σ = 20473210112256. Its totient is φ = 13008902901120.

The previous prime is 16660775334649. The next prime is 16660775334719. The reversal of 16660775334715 is 51743357706661.

It is not a de Polignac number, because 16660775334715 - 2¹¹ = 16660775332667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16660775334719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2309822449 + ... + 2309829661.

It is an arithmetic number, because the mean of its divisors is an integer number (639787816008).

Almost surely, 2^{16660775334715} is an apocalyptic number.

16660775334715 is a deficient number, since it is larger than the sum of its proper divisors (3812434777541).

16660775334715 is a wasteful number, since it uses less digits than its factorization.

16660775334715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13819.

The product of its (nonzero) digits is 66679200, while the sum is 61.

The spelling of 16660775334715 in words is "sixteen trillion, six hundred sixty billion, seven hundred seventy-five million, three hundred thirty-four thousand, seven hundred fifteen".