220606640065 has 32 divisors (see below), whose sum is σ = 304352640000. Its totient is φ = 150372192768.

The previous prime is 220606640041. The next prime is 220606640069. The reversal of 220606640065 is 560046606022.

It is a happy number.

It is not a de Polignac number, because 220606640065 - 2¹¹ = 220606638017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220606640069) 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, 4736511 + ... + 4782859.

It is an arithmetic number, because the mean of its divisors is an integer number (9511020000).

Almost surely, 2^220606640065 is an apocalyptic number.

It is an amenable number.

220606640065 is a deficient number, since it is larger than the sum of its proper divisors (83745999935).

220606640065 is a wasteful number, since it uses less digits than its factorization.

220606640065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47169.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 220606640065 in words is "two hundred twenty billion, six hundred six million, six hundred forty thousand, sixty-five".