220209684166680 has 128 divisors (see below), whose sum is σ = 711452739916800. Its totient is φ = 54204998395392.

The previous prime is 220209684166597. The next prime is 220209684166697. The reversal of 220209684166680 is 86661486902022.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204820677 + ... + 205893003.

It is an arithmetic number, because the mean of its divisors is an integer number (5558224530600).

Almost surely, 2^{220209684166680} is an apocalyptic number.

220209684166680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220209684166680 is an abundant number, since it is smaller than the sum of its proper divisors (491243055750120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220209684166680 is a wasteful number, since it uses less digits than its factorization.

220209684166680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203993 (or 1203989 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 60.

The spelling of 220209684166680 in words is "two hundred twenty trillion, two hundred nine billion, six hundred eighty-four million, one hundred sixty-six thousand, six hundred eighty".