20765302976 has 112 divisors (see below), whose sum is σ = 45806611968. Its totient is φ = 9260697600.

The previous prime is 20765302963. The next prime is 20765302997. The reversal of 20765302976 is 67920356702.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20765302976.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11645381 + ... + 11647163.

Almost surely, 2^20765302976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20765302976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22903305984).

20765302976 is an abundant number, since it is smaller than the sum of its proper divisors (25041308992).

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

20765302976 is a wasteful number, since it uses less digits than its factorization.

20765302976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110 (or 2100 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 20765302976 in words is "twenty billion, seven hundred sixty-five million, three hundred two thousand, nine hundred seventy-six".