20979663214 has 8 divisors (see below), whose sum is σ = 31570037280. Its totient is φ = 10456317456.

The previous prime is 20979663193. The next prime is 20979663269. The reversal of 20979663214 is 41236697902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16756294 + ... + 16757545.

It is an arithmetic number, because the mean of its divisors is an integer number (3946254660).

Almost surely, 2^20979663214 is an apocalyptic number.

20979663214 is a deficient number, since it is larger than the sum of its proper divisors (10590374066).

20979663214 is a wasteful number, since it uses less digits than its factorization.

20979663214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33514154.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 20979663214 in words is "twenty billion, nine hundred seventy-nine million, six hundred sixty-three thousand, two hundred fourteen".