220507666717 has 12 divisors (see below), whose sum is σ = 239655710784. Its totient is φ = 202794405840.

The previous prime is 220507666681. The next prime is 220507666721. The reversal of 220507666717 is 717666705022.

It is not a de Polignac number, because 220507666717 - 2¹¹ = 220507664669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220507666727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2361543 + ... + 2453140.

It is an arithmetic number, because the mean of its divisors is an integer number (19971309232).

Almost surely, 2^220507666717 is an apocalyptic number.

It is an amenable number.

220507666717 is a deficient number, since it is larger than the sum of its proper divisors (19148044067).

220507666717 is a wasteful number, since it uses less digits than its factorization.

220507666717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4814980 (or 4814967 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 220507666717 in words is "two hundred twenty billion, five hundred seven million, six hundred sixty-six thousand, seven hundred seventeen".