21706060712 has 96 divisors (see below), whose sum is σ = 49236782400. Its totient is φ = 8786631168.

The previous prime is 21706060699. The next prime is 21706060723.

21706060712 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7660448 + ... + 7663280.

It is an arithmetic number, because the mean of its divisors is an integer number (512883150).

Almost surely, 2^21706060712 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 21706060712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24618391200).

21706060712 is an abundant number, since it is smaller than the sum of its proper divisors (27530721688).

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

21706060712 is a wasteful number, since it uses less digits than its factorization.

21706060712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263 (or 3240 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

It can be divided in two parts, 217060 and 60712, that added together give a palindrome (277772).

The spelling of 21706060712 in words is "twenty-one billion, seven hundred six million, sixty thousand, seven hundred twelve".