4722745665 has 16 divisors (see below), whose sum is σ = 8243338176. Its totient is φ = 2289816000.

The previous prime is 4722745661. The next prime is 4722745667. The reversal of 4722745665 is 5665472274.

It is not a de Polignac number, because 4722745665 - 2² = 4722745661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4722745661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14311186 + ... + 14311515.

It is an arithmetic number, because the mean of its divisors is an integer number (515208636).

Almost surely, 2^4722745665 is an apocalyptic number.

It is an amenable number.

4722745665 is a deficient number, since it is larger than the sum of its proper divisors (3520592511).

4722745665 is a wasteful number, since it uses less digits than its factorization.

4722745665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28622720.

The product of its digits is 2822400, while the sum is 48.

The square root of 4722745665 is about 68722.2355937291. The cubic root of 4722745665 is about 1677.7665029829.

The spelling of 4722745665 in words is "four billion, seven hundred twenty-two million, seven hundred forty-five thousand, six hundred sixty-five".