1668182968 has 8 divisors (see below), whose sum is σ = 3127843080. Its totient is φ = 834091480.

The previous prime is 1668182959. The next prime is 1668182969. The reversal of 1668182968 is 8692818661.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668182969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104261428 + ... + 104261443.

It is an arithmetic number, because the mean of its divisors is an integer number (390980385).

Almost surely, 2^1668182968 is an apocalyptic number.

It is an amenable number.

1668182968 is a deficient number, since it is larger than the sum of its proper divisors (1459660112).

1668182968 is a wasteful number, since it uses less digits than its factorization.

1668182968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208522877 (or 208522873 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 55.

The square root of 1668182968 is about 40843.3956472769. The cubic root of 1668182968 is about 1185.9905473171.

The spelling of 1668182968 in words is "one billion, six hundred sixty-eight million, one hundred eighty-two thousand, nine hundred sixty-eight".