4245224665 has 32 divisors (see below), whose sum is σ = 5825457792. Its totient is φ = 2942016000.

The previous prime is 4245224647. The next prime is 4245224689. The reversal of 4245224665 is 5664225424.

It is not a de Polignac number, because 4245224665 - 2²⁵ = 4211670233 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75075 + ... + 118855.

It is an arithmetic number, because the mean of its divisors is an integer number (182045556).

Almost surely, 2^4245224665 is an apocalyptic number.

It is an amenable number.

4245224665 is a deficient number, since it is larger than the sum of its proper divisors (1580233127).

4245224665 is a wasteful number, since it uses less digits than its factorization.

4245224665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43881.

The product of its digits is 460800, while the sum is 40.

The square root of 4245224665 is about 65155.3886106130. The cubic root of 4245224665 is about 1619.1989975250.

The spelling of 4245224665 in words is "four billion, two hundred forty-five million, two hundred twenty-four thousand, six hundred sixty-five".