220667460864 has 108 divisors (see below), whose sum is σ = 596203028064. Its totient is φ = 72456840192.

The previous prime is 220667460833. The next prime is 220667460877. The reversal of 220667460864 is 468064766022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3415549 + ... + 3479555.

It is an arithmetic number, because the mean of its divisors is an integer number (5520398408).

Almost surely, 2^220667460864 is an apocalyptic number.

220667460864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220667460864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298101514032).

220667460864 is an abundant number, since it is smaller than the sum of its proper divisors (375535567200).

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

220667460864 is an frugal number, since it uses more digits than its factorization.

220667460864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64160 (or 64079 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 51.

The spelling of 220667460864 in words is "two hundred twenty billion, six hundred sixty-seven million, four hundred sixty thousand, eight hundred sixty-four".