4001433475665 has 64 divisors (see below), whose sum is σ = 7039477186560. Its totient is φ = 1932130360320.

The previous prime is 4001433475609. The next prime is 4001433475717. The reversal of 4001433475665 is 5665743341004.

It is not a de Polignac number, because 4001433475665 - 2²⁰ = 4001432427089 is a prime.

It is a super-2 number, since 2×4001433475665² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 195405 + ... + 2835674.

It is an arithmetic number, because the mean of its divisors is an integer number (109991831040).

Almost surely, 2^{4001433475665} is an apocalyptic number.

It is an amenable number.

4001433475665 is a deficient number, since it is larger than the sum of its proper divisors (3038043710895).

4001433475665 is a wasteful number, since it uses less digits than its factorization.

4001433475665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031302.

The product of its (nonzero) digits is 3628800, while the sum is 48.

The spelling of 4001433475665 in words is "four trillion, one billion, four hundred thirty-three million, four hundred seventy-five thousand, six hundred sixty-five".