11806223120 has 20 divisors (see below), whose sum is σ = 27449468940. Its totient is φ = 4722489216.

The previous prime is 11806223119. The next prime is 11806223141. The reversal of 11806223120 is 2132260811.

It can be written as a sum of positive squares in 2 ways, for example, as 6638338576 + 5167884544 = 81476^2 + 71888^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 11806223120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73788815 + ... + 73788974.

It is an arithmetic number, because the mean of its divisors is an integer number (1372473447).

Almost surely, 2^11806223120 is an apocalyptic number.

11806223120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11806223120 is an abundant number, since it is smaller than the sum of its proper divisors (15643245820).

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

11806223120 is a wasteful number, since it uses less digits than its factorization.

11806223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147577802 (or 147577796 counting only the distinct ones).

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

Adding to 11806223120 its reverse (2132260811), we get a palindrome (13938483931).

The spelling of 11806223120 in words is "eleven billion, eight hundred six million, two hundred twenty-three thousand, one hundred twenty".