1983271216 has 20 divisors (see below), whose sum is σ = 3844620000. Its totient is φ = 991111232.

The previous prime is 1983271193. The next prime is 1983271219. The reversal of 1983271216 is 6121723891.

It is not an unprimeable number, because it can be changed into a prime (1983271219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616 + ... + 62983.

It is an arithmetic number, because the mean of its divisors is an integer number (192231000).

Almost surely, 2^1983271216 is an apocalyptic number.

1983271216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1983271216 is a deficient number, since it is larger than the sum of its proper divisors (1861348784).

1983271216 is a wasteful number, since it uses less digits than its factorization.

1983271216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65556 (or 65550 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 1983271216 is about 44533.9333093317. The cubic root of 1983271216 is about 1256.3983853964.

The spelling of 1983271216 in words is "one billion, nine hundred eighty-three million, two hundred seventy-one thousand, two hundred sixteen".