4120561065 has 64 divisors (see below), whose sum is σ = 7368157440. Its totient is φ = 1954160640.

The previous prime is 4120561007. The next prime is 4120561087. The reversal of 4120561065 is 5601650214.

It is not a de Polignac number, because 4120561065 - 2⁷ = 4120560937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2213235 + ... + 2215095.

It is an arithmetic number, because the mean of its divisors is an integer number (115127460).

Almost surely, 2^4120561065 is an apocalyptic number.

It is an amenable number.

4120561065 is a deficient number, since it is larger than the sum of its proper divisors (3247596375).

4120561065 is a wasteful number, since it uses less digits than its factorization.

4120561065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 4120561065 is about 64191.5965294524. The cubic root of 4120561065 is about 1603.1916843245.

The spelling of 4120561065 in words is "four billion, one hundred twenty million, five hundred sixty-one thousand, sixty-five".