4554431665 has 48 divisors (see below), whose sum is σ = 6791865552. Its totient is φ = 2913017856.

The previous prime is 4554431653. The next prime is 4554431677. The reversal of 4554431665 is 5661344554.

It is an interprime number because it is at equal distance from previous prime (4554431653) and next prime (4554431677).

It can be written as a sum of positive squares in 8 ways, for example, as 109809441 + 4444622224 = 10479^2 + 66668^2 .

It is not a de Polignac number, because 4554431665 - 2⁵ = 4554431633 is a prime.

It is a Duffinian number.

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, 465807 + ... + 475483.

It is an arithmetic number, because the mean of its divisors is an integer number (141497199).

Almost surely, 2^4554431665 is an apocalyptic number.

It is an amenable number.

4554431665 is a deficient number, since it is larger than the sum of its proper divisors (2237433887).

4554431665 is a wasteful number, since it uses less digits than its factorization.

4554431665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9826 (or 9819 counting only the distinct ones).

The product of its digits is 864000, while the sum is 43.

The square root of 4554431665 is about 67486.5295077470. The cubic root of 4554431665 is about 1657.5936083060.

The spelling of 4554431665 in words is "four billion, five hundred fifty-four million, four hundred thirty-one thousand, six hundred sixty-five".