220711510516 has 12 divisors (see below), whose sum is σ = 441423021088. Its totient is φ = 94590647352.

The previous prime is 220711510507. The next prime is 220711510517. The reversal of 220711510516 is 615015117022.

220711510516 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220711510517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3941276946 + ... + 3941277001.

Almost surely, 2^220711510516 is an apocalyptic number.

It is an amenable number.

220711510516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

220711510516 is a wasteful number, since it uses less digits than its factorization.

220711510516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7882553958 (or 7882553956 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 31.

Adding to 220711510516 its reverse (615015117022), we get a palindrome (835726627538).

The spelling of 220711510516 in words is "two hundred twenty billion, seven hundred eleven million, five hundred ten thousand, five hundred sixteen".