4044331665 has 48 divisors (see below), whose sum is σ = 7655618880. Its totient is φ = 1958797440.

The previous prime is 4044331651. The next prime is 4044331679. The reversal of 4044331665 is 5661334404.

4044331665 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4044331651) and next prime (4044331679).

It is not a de Polignac number, because 4044331665 - 2⁴ = 4044331649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 525334 + ... + 532976.

It is an arithmetic number, because the mean of its divisors is an integer number (159492060).

Almost surely, 2^4044331665 is an apocalyptic number.

4044331665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4044331665 is a deficient number, since it is larger than the sum of its proper divisors (3611287215).

4044331665 is a wasteful number, since it uses less digits than its factorization.

4044331665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8734 (or 8731 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 4044331665 is about 63595.0600675870. The cubic root of 4044331665 is about 1593.2438640096.

The spelling of 4044331665 in words is "four billion, forty-four million, three hundred thirty-one thousand, six hundred sixty-five".