3990066966 has 40 divisors (see below), whose sum is σ = 8944468104. Its totient is φ = 1329462720.

The previous prime is 3990066961. The next prime is 3990067019. The reversal of 3990066966 is 6696600993.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990066961) 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 19 ways as a sum of consecutive naturals, for example, 594606 + ... + 601278.

Almost surely, 2^3990066966 is an apocalyptic number.

3990066966 is an abundant number, since it is smaller than the sum of its proper divisors (4954401138).

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

3990066966 is a wasteful number, since it uses less digits than its factorization.

3990066966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10378 (or 10369 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 54.

The square root of 3990066966 is about 63166.9768629147. The cubic root of 3990066966 is about 1586.0859870997.

The spelling of 3990066966 in words is "three billion, nine hundred ninety million, sixty-six thousand, nine hundred sixty-six".