20966470080 has 112 divisors (see below), whose sum is σ = 66914048544. Its totient is φ = 5562040320.

The previous prime is 20966470051. The next prime is 20966470093. The reversal of 20966470080 is 8007466902.

It is a congruent number.

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, 128700 + ... + 241860.

It is an arithmetic number, because the mean of its divisors is an integer number (597446862).

Almost surely, 2^20966470080 is an apocalyptic number.

20966470080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20966470080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33457024272).

20966470080 is an abundant number, since it is smaller than the sum of its proper divisors (45947578464).

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

20966470080 is a wasteful number, since it uses less digits than its factorization.

20966470080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113374 (or 113364 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 20966470080 in words is "twenty billion, nine hundred sixty-six million, four hundred seventy thousand, eighty".