1996665875 has 8 divisors (see below), whose sum is σ = 2491839168. Its totient is φ = 1597332600.

The previous prime is 1996665871. The next prime is 1996665877. The reversal of 1996665875 is 5785666991.

It is not a de Polignac number, because 1996665875 - 2² = 1996665871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1996665871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7986539 + ... + 7986788.

It is an arithmetic number, because the mean of its divisors is an integer number (311479896).

Almost surely, 2^1996665875 is an apocalyptic number.

1996665875 is a deficient number, since it is larger than the sum of its proper divisors (495173293).

1996665875 is an equidigital number, since it uses as much as digits as its factorization.

1996665875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15973342 (or 15973332 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 62.

The square root of 1996665875 is about 44684.0673506788. The cubic root of 1996665875 is about 1259.2205381065.

The spelling of 1996665875 in words is "one billion, nine hundred ninety-six million, six hundred sixty-five thousand, eight hundred seventy-five".