220011144636 has 48 divisors (see below), whose sum is σ = 529124133888. Its totient is φ = 71118801600.

The previous prime is 220011144593. The next prime is 220011144653. The reversal of 220011144636 is 636441110022.

220011144636 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2064660 + ... + 2168603.

It is an arithmetic number, because the mean of its divisors is an integer number (11023419456).

Almost surely, 2^220011144636 is an apocalyptic number.

It is an amenable number.

220011144636 is an abundant number, since it is smaller than the sum of its proper divisors (309112989252).

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

220011144636 is a wasteful number, since it uses less digits than its factorization.

220011144636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233402 (or 4233400 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 220011144636 its reverse (636441110022), we get a palindrome (856452254658).

The spelling of 220011144636 in words is "two hundred twenty billion, eleven million, one hundred forty-four thousand, six hundred thirty-six".