11601143140220 has 48 divisors (see below), whose sum is σ = 24407837546400. Its totient is φ = 4631807496960.

The previous prime is 11601143140177. The next prime is 11601143140253. The reversal of 11601143140220 is 2204134110611.

It is a self number, because there is not a number n which added to its sum of digits gives 11601143140220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38189330 + ... + 38491910.

It is an arithmetic number, because the mean of its divisors is an integer number (508496615550).

Almost surely, 2^{11601143140220} is an apocalyptic number.

11601143140220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11601143140220 is an abundant number, since it is smaller than the sum of its proper divisors (12806694406180).

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

11601143140220 is a wasteful number, since it uses less digits than its factorization.

11601143140220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306158 (or 306156 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 11601143140220 its reverse (2204134110611), we get a palindrome (13805277250831).

The spelling of 11601143140220 in words is "eleven trillion, six hundred one billion, one hundred forty-three million, one hundred forty thousand, two hundred twenty".