4003660668 has 48 divisors (see below), whose sum is σ = 10688993280. Its totient is φ = 1142556864.

The previous prime is 4003660663. The next prime is 4003660673. The reversal of 4003660668 is 8660663004.

It is an interprime number because it is at equal distance from previous prime (4003660663) and next prime (4003660673).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4003660663) 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 15 ways as a sum of consecutive naturals, for example, 44878 + ... + 100106.

It is an arithmetic number, because the mean of its divisors is an integer number (222687360).

Almost surely, 2^4003660668 is an apocalyptic number.

It is an amenable number.

4003660668 is an abundant number, since it is smaller than the sum of its proper divisors (6685332612).

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

4003660668 is a wasteful number, since it uses less digits than its factorization.

4003660668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56106 (or 56104 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 4003660668 is about 63274.4867067288. The cubic root of 4003660668 is about 1587.8851500075.

The spelling of 4003660668 in words is "four billion, three million, six hundred sixty thousand, six hundred sixty-eight".