20575094685 has 16 divisors (see below), whose sum is σ = 33087263616. Its totient is φ = 10917679808.

The previous prime is 20575094669. The next prime is 20575094693. The reversal of 20575094685 is 58649057502.

It is a cyclic number.

It is not a de Polignac number, because 20575094685 - 2⁴ = 20575094669 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3478449 + ... + 3484358.

It is an arithmetic number, because the mean of its divisors is an integer number (2067953976).

Almost surely, 2^20575094685 is an apocalyptic number.

It is an amenable number.

20575094685 is a deficient number, since it is larger than the sum of its proper divisors (12512168931).

20575094685 is a wasteful number, since it uses less digits than its factorization.

20575094685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6963012.

The product of its (nonzero) digits is 3024000, while the sum is 51.

The spelling of 20575094685 in words is "twenty billion, five hundred seventy-five million, ninety-four thousand, six hundred eighty-five".