21183327316 has 24 divisors (see below), whose sum is σ = 39400786880. Its totient is φ = 9936784512.

The previous prime is 21183327307. The next prime is 21183327383. The reversal of 21183327316 is 61372338112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345221 + ... + 1360876.

Almost surely, 2^21183327316 is an apocalyptic number.

It is an amenable number.

21183327316 is a deficient number, since it is larger than the sum of its proper divisors (18217459564).

21183327316 is a wasteful number, since it uses less digits than its factorization.

21183327316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706223 (or 2706221 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The spelling of 21183327316 in words is "twenty-one billion, one hundred eighty-three million, three hundred twenty-seven thousand, three hundred sixteen".