21676162116 has 96 divisors (see below), whose sum is σ = 59712307200. Its totient is φ = 5988931200.

The previous prime is 21676162097. The next prime is 21676162129. The reversal of 21676162116 is 61126167612.

It is a super-2 number, since 2×21676162116² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 5073061 + ... + 5077331.

It is an arithmetic number, because the mean of its divisors is an integer number (622003200).

Almost surely, 2^21676162116 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 21676162116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29856153600).

21676162116 is an abundant number, since it is smaller than the sum of its proper divisors (38036145084).

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

21676162116 is a wasteful number, since it uses less digits than its factorization.

21676162116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6265 (or 6263 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The spelling of 21676162116 in words is "twenty-one billion, six hundred seventy-six million, one hundred sixty-two thousand, one hundred sixteen".