12061280808 has 64 divisors (see below), whose sum is σ = 34135732800. Its totient is φ = 3944566080.

The previous prime is 12061280789. The next prime is 12061280827. The reversal of 12061280808 is 80808216021.

It is an interprime number because it is at equal distance from previous prime (12061280789) and next prime (12061280827).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515338 + ... + 538233.

It is an arithmetic number, because the mean of its divisors is an integer number (533370825).

Almost surely, 2^12061280808 is an apocalyptic number.

12061280808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12061280808 is an abundant number, since it is smaller than the sum of its proper divisors (22074451992).

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

12061280808 is a wasteful number, since it uses less digits than its factorization.

12061280808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053639 (or 1053629 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

Adding to 12061280808 its reverse (80808216021), we get a palindrome (92869496829).

The spelling of 12061280808 in words is "twelve billion, sixty-one million, two hundred eighty thousand, eight hundred eight".