42656602065 has 32 divisors (see below), whose sum is σ = 85091613696. Its totient is φ = 17727418560.

The previous prime is 42656602049. The next prime is 42656602067. The reversal of 42656602065 is 56020665624.

42656602065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42656602065 - 2⁴ = 42656602049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42656602067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18464907 + ... + 18467216.

It is an arithmetic number, because the mean of its divisors is an integer number (2659112928).

Almost surely, 2^42656602065 is an apocalyptic number.

It is an amenable number.

42656602065 is a deficient number, since it is larger than the sum of its proper divisors (42435011631).

42656602065 is a wasteful number, since it uses less digits than its factorization.

42656602065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36932149.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 42656602065 in words is "forty-two billion, six hundred fifty-six million, six hundred two thousand, sixty-five".