4528145665 has 16 divisors (see below), whose sum is σ = 5611516416. Its totient is φ = 3504124800.

The previous prime is 4528145663. The next prime is 4528145681. The reversal of 4528145665 is 5665418254.

4528145665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4528145665 - 2¹ = 4528145663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4528145663) 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, 455589 + ... + 465421.

It is an arithmetic number, because the mean of its divisors is an integer number (350719776).

Almost surely, 2^4528145665 is an apocalyptic number.

It is an amenable number.

4528145665 is a deficient number, since it is larger than the sum of its proper divisors (1083370751).

4528145665 is a wasteful number, since it uses less digits than its factorization.

4528145665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12840.

The product of its digits is 1152000, while the sum is 46.

The square root of 4528145665 is about 67291.4977170222. The cubic root of 4528145665 is about 1654.3985078530.

The spelling of 4528145665 in words is "four billion, five hundred twenty-eight million, one hundred forty-five thousand, six hundred sixty-five".