220261671260 has 96 divisors (see below), whose sum is σ = 497312524800. Its totient is φ = 81698561280.

The previous prime is 220261671199. The next prime is 220261671299. The reversal of 220261671260 is 62176162022.

It is a self number, because there is not a number n which added to its sum of digits gives 220261671260.

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, 3720854 + ... + 3779586.

It is an arithmetic number, because the mean of its divisors is an integer number (5180338800).

Almost surely, 2^220261671260 is an apocalyptic number.

220261671260 is a gapful number since it is divisible by the number (20) 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 220261671260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248656262400).

220261671260 is an abundant number, since it is smaller than the sum of its proper divisors (277050853540).

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

220261671260 is a wasteful number, since it uses less digits than its factorization.

220261671260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58971 (or 58969 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 220261671260 in words is "two hundred twenty billion, two hundred sixty-one million, six hundred seventy-one thousand, two hundred sixty".