20968023916 has 24 divisors (see below), whose sum is σ = 42167748896. Its totient is φ = 8936645760.

The previous prime is 20968023887. The next prime is 20968023997. The reversal of 20968023916 is 61932086902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2063601 + ... + 2073736.

Almost surely, 2^20968023916 is an apocalyptic number.

It is an amenable number.

20968023916 is an abundant number, since it is smaller than the sum of its proper divisors (21199724980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20968023916 is a wasteful number, since it uses less digits than its factorization.

20968023916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137529 (or 4137527 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 20968023916 in words is "twenty billion, nine hundred sixty-eight million, twenty-three thousand, nine hundred sixteen".