1966983328 has 12 divisors (see below), whose sum is σ = 3872498490. Its totient is φ = 983491648.

The previous prime is 1966983313. The next prime is 1966983331. The reversal of 1966983328 is 8233896691.

It can be written as a sum of positive squares in only one way, i.e., 1775105424 + 191877904 = 42132^2 + 13852^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30734083 + ... + 30734146.

Almost surely, 2^1966983328 is an apocalyptic number.

It is an amenable number.

1966983328 is a deficient number, since it is larger than the sum of its proper divisors (1905515162).

1966983328 is an equidigital number, since it uses as much as digits as its factorization.

1966983328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61468239 (or 61468231 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 55.

The square root of 1966983328 is about 44350.6857669642. The cubic root of 1966983328 is about 1252.9494782950.

The spelling of 1966983328 in words is "one billion, nine hundred sixty-six million, nine hundred eighty-three thousand, three hundred twenty-eight".