20687350693059 has 64 divisors (see below), whose sum is σ = 33155164062720. Its totient is φ = 12715115592960.

The previous prime is 20687350693007. The next prime is 20687350693067. The reversal of 20687350693059 is 95039605378602.

20687350693059 is a `hidden beast` number, since 2 + 0 + 6 + 8 + 73 + 506 + 9 + 3 + 0 + 59 = 666.

It is not a de Polignac number, because 20687350693059 - 2¹¹ = 20687350691011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20687350692987 and 20687350693005.

It is not an unprimeable number, because it can be changed into a prime (20687350693069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2781384 + ... + 7007909.

It is an arithmetic number, because the mean of its divisors is an integer number (518049438480).

Almost surely, 2^{20687350693059} is an apocalyptic number.

20687350693059 is a deficient number, since it is larger than the sum of its proper divisors (12467813369661).

20687350693059 is a wasteful number, since it uses less digits than its factorization.

20687350693059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9789449 (or 9789443 counting only the distinct ones).

The product of its (nonzero) digits is 73483200, while the sum is 63.

The spelling of 20687350693059 in words is "twenty trillion, six hundred eighty-seven billion, three hundred fifty million, six hundred ninety-three thousand, fifty-nine".