1668682148 has 12 divisors (see below), whose sum is σ = 3337364352. Its totient is φ = 715149480.

The previous prime is 1668682133. The next prime is 1668682207. The reversal of 1668682148 is 8412868661.

1668682148 is an admirable number.

It is a super-2 number, since 2×1668682148² = 5569000222107787808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1668682096 and 1668682105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29797868 + ... + 29797923.

It is an arithmetic number, because the mean of its divisors is an integer number (278113696).

Almost surely, 2^1668682148 is an apocalyptic number.

It is an amenable number.

1668682148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1668682148 is a wasteful number, since it uses less digits than its factorization.

1668682148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59595802 (or 59595800 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The square root of 1668682148 is about 40849.5060924854. The cubic root of 1668682148 is about 1186.1088324475.

The spelling of 1668682148 in words is "one billion, six hundred sixty-eight million, six hundred eighty-two thousand, one hundred forty-eight".