20718032676 has 96 divisors (see below), whose sum is σ = 53409767040. Its totient is φ = 6198297600.

The previous prime is 20718032653. The next prime is 20718032693. The reversal of 20718032676 is 67623081702.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15001506 + ... + 15002886.

It is an arithmetic number, because the mean of its divisors is an integer number (556351740).

Almost surely, 2^20718032676 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 20718032676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26704883520).

20718032676 is an abundant number, since it is smaller than the sum of its proper divisors (32691734364).

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

20718032676 is a wasteful number, since it uses less digits than its factorization.

20718032676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765 (or 2763 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 20718032676 in words is "twenty billion, seven hundred eighteen million, thirty-two thousand, six hundred seventy-six".