20696950868 has 12 divisors (see below), whose sum is σ = 39512360832. Its totient is φ = 9407704920.

The previous prime is 20696950861. The next prime is 20696950873. The reversal of 20696950868 is 86805969602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20696950861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235192580 + ... + 235192667.

It is an arithmetic number, because the mean of its divisors is an integer number (3292696736).

Almost surely, 2^20696950868 is an apocalyptic number.

It is an amenable number.

20696950868 is a deficient number, since it is larger than the sum of its proper divisors (18815409964).

20696950868 is a wasteful number, since it uses less digits than its factorization.

20696950868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470385262 (or 470385260 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 20696950868 in words is "twenty billion, six hundred ninety-six million, nine hundred fifty thousand, eight hundred sixty-eight".