20968015005 has 48 divisors (see below), whose sum is σ = 42121707264. Its totient is φ = 9450362880.

The previous prime is 20968015001. The next prime is 20968015049. The reversal of 20968015005 is 50051086902.

It is a happy number.

It is not a de Polignac number, because 20968015005 - 2² = 20968015001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20968015001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 446404 + ... + 491133.

It is an arithmetic number, because the mean of its divisors is an integer number (877535568).

Almost surely, 2^20968015005 is an apocalyptic number.

It is an amenable number.

20968015005 is an abundant number, since it is smaller than the sum of its proper divisors (21153692259).

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

20968015005 is a wasteful number, since it uses less digits than its factorization.

20968015005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937626 (or 937623 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 20968015005 in words is "twenty billion, nine hundred sixty-eight million, fifteen thousand, five".