16775137678085 has 16 divisors (see below), whose sum is σ = 20204727404400. Its totient is φ = 13370491184640.

The previous prime is 16775137678063. The next prime is 16775137678099. The reversal of 16775137678085 is 58087673157761.

It can be written as a sum of positive squares in 8 ways, for example, as 696625598881 + 16078512079204 = 834641^2 + 4009802^2 .

It is not a de Polignac number, because 16775137678085 - 2²⁸ = 16774869242629 is a prime.

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, 4067360 + ... + 7077689.

It is an arithmetic number, because the mean of its divisors is an integer number (1262795462775).

Almost surely, 2^{16775137678085} is an apocalyptic number.

It is an amenable number.

16775137678085 is a deficient number, since it is larger than the sum of its proper divisors (3429589726315).

16775137678085 is a wasteful number, since it uses less digits than its factorization.

16775137678085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11146168.

The product of its (nonzero) digits is 414892800, while the sum is 71.

The spelling of 16775137678085 in words is "sixteen trillion, seven hundred seventy-five billion, one hundred thirty-seven million, six hundred seventy-eight thousand, eighty-five".