20696348668 has 12 divisors (see below), whose sum is σ = 36989219232. Its totient is φ = 10128000320.

The previous prime is 20696348653. The next prime is 20696348707. The reversal of 20696348668 is 86684369602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55043293 + ... + 55043668.

It is an arithmetic number, because the mean of its divisors is an integer number (3082434936).

Almost surely, 2^20696348668 is an apocalyptic number.

It is an amenable number.

20696348668 is a deficient number, since it is larger than the sum of its proper divisors (16292870564).

20696348668 is a wasteful number, since it uses less digits than its factorization.

20696348668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110087012 (or 110087010 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 58.

The spelling of 20696348668 in words is "twenty billion, six hundred ninety-six million, three hundred forty-eight thousand, six hundred sixty-eight".