1668982875 has 96 divisors (see below), whose sum is σ = 3285771840. Its totient is φ = 749952000.

The previous prime is 1668982829. The next prime is 1668982877. The reversal of 1668982875 is 5782898661.

It is not a de Polignac number, because 1668982875 - 2⁶ = 1668982811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668982877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1120131 + ... + 1121619.

It is an arithmetic number, because the mean of its divisors is an integer number (34226790).

Almost surely, 2^1668982875 is an apocalyptic number.

1668982875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1668982875 is a deficient number, since it is larger than the sum of its proper divisors (1616788965).

1668982875 is a wasteful number, since it uses less digits than its factorization.

1668982875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582 (or 1565 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 60.

The square root of 1668982875 is about 40853.1868401964. The cubic root of 1668982875 is about 1186.1800809925.

The spelling of 1668982875 in words is "one billion, six hundred sixty-eight million, nine hundred eighty-two thousand, eight hundred seventy-five".