220761120220716 has 96 divisors (see below), whose sum is σ = 534541203060480. Its totient is φ = 70826999443200.

The previous prime is 220761120220681. The next prime is 220761120220721. The reversal of 220761120220716 is 617022021167022.

It is a happy number.

It is a super-2 number, since 2×220761120220716² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1079324490 + ... + 1079529006.

It is an arithmetic number, because the mean of its divisors is an integer number (5568137531880).

Almost surely, 2^{220761120220716} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220761120220716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267270601530240).

220761120220716 is an abundant number, since it is smaller than the sum of its proper divisors (313780082839764).

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

220761120220716 is a wasteful number, since it uses less digits than its factorization.

220761120220716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214255 (or 214253 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

Adding to 220761120220716 its reverse (617022021167022), we get a palindrome (837783141387738).

The spelling of 220761120220716 in words is "two hundred twenty trillion, seven hundred sixty-one billion, one hundred twenty million, two hundred twenty thousand, seven hundred sixteen".