4640434665 has 32 divisors (see below), whose sum is σ = 7994712960. Its totient is φ = 2289828864.

The previous prime is 4640434649. The next prime is 4640434709. The reversal of 4640434665 is 5664340464.

It is not a de Polignac number, because 4640434665 - 2⁴ = 4640434649 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 139174 + ... + 169263.

It is an arithmetic number, because the mean of its divisors is an integer number (249834780).

Almost surely, 2^4640434665 is an apocalyptic number.

It is an amenable number.

4640434665 is a deficient number, since it is larger than the sum of its proper divisors (3354278295).

4640434665 is a wasteful number, since it uses less digits than its factorization.

4640434665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308521.

The product of its (nonzero) digits is 829440, while the sum is 42.

The square root of 4640434665 is about 68120.7359399471. The cubic root of 4640434665 is about 1667.9622635074.

The spelling of 4640434665 in words is "four billion, six hundred forty million, four hundred thirty-four thousand, six hundred sixty-five".