1668237046 has 24 divisors (see below), whose sum is σ = 2913589656. Its totient is φ = 714299040.

The previous prime is 1668237041. The next prime is 1668237049. The reversal of 1668237046 is 6407328661.

It is a super-2 number, since 2×1668237046² = 5566029683293612232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1668236993 and 1668237011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668237041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107490 + ... + 122026.

It is an arithmetic number, because the mean of its divisors is an integer number (121399569).

Almost surely, 2^1668237046 is an apocalyptic number.

1668237046 is a deficient number, since it is larger than the sum of its proper divisors (1245352610).

1668237046 is a wasteful number, since it uses less digits than its factorization.

1668237046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15724 (or 15717 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 1668237046 is about 40844.0576583669. The cubic root of 1668237046 is about 1186.0033627186.

The spelling of 1668237046 in words is "one billion, six hundred sixty-eight million, two hundred thirty-seven thousand, forty-six".