6664044042 has 32 divisors (see below), whose sum is σ = 14907077760. Its totient is φ = 2206634400.

The previous prime is 6664044029. The next prime is 6664044061. The reversal of 6664044042 is 2404404666.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6664043988 and 6664044006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400483 + ... + 416790.

It is an arithmetic number, because the mean of its divisors is an integer number (465846180).

Almost surely, 2^6664044042 is an apocalyptic number.

6664044042 is an abundant number, since it is smaller than the sum of its proper divisors (8243033718).

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

6664044042 is a wasteful number, since it uses less digits than its factorization.

6664044042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817435 (or 817429 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The square root of 6664044042 is about 81633.5962824130. The cubic root of 6664044042 is about 1881.8252269618.

The spelling of 6664044042 in words is "six billion, six hundred sixty-four million, forty-four thousand, forty-two".