4075820665 has 16 divisors (see below), whose sum is σ = 5618080512. Its totient is φ = 2780656704.

The previous prime is 4075820657. The next prime is 4075820687. The reversal of 4075820665 is 5660285704.

It is not a de Polignac number, because 4075820665 - 2³ = 4075820657 is a prime.

It is a super-2 number, since 2×4075820665² = 33224628186482084450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 288669 + ... + 302458.

It is an arithmetic number, because the mean of its divisors is an integer number (351130032).

Almost surely, 2^4075820665 is an apocalyptic number.

It is an amenable number.

4075820665 is a deficient number, since it is larger than the sum of its proper divisors (1542259847).

4075820665 is a wasteful number, since it uses less digits than its factorization.

4075820665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591336.

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 4075820665 is about 63842.1542947918. The cubic root of 4075820665 is about 1597.3681556677.

The spelling of 4075820665 in words is "four billion, seventy-five million, eight hundred twenty thousand, six hundred sixty-five".