12116220064 has 24 divisors (see below), whose sum is σ = 25688717460. Its totient is φ = 5592101376.

The previous prime is 12116220047. The next prime is 12116220073. The reversal of 12116220064 is 46002261121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11554530064 + 561690000 = 107492^2 + 23700^2 .

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, 14562349 + ... + 14563180.

Almost surely, 2^12116220064 is an apocalyptic number.

It is an amenable number.

12116220064 is an abundant number, since it is smaller than the sum of its proper divisors (13572497396).

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

12116220064 is a wasteful number, since it uses less digits than its factorization.

12116220064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29125552 (or 29125544 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 12116220064 its reverse (46002261121), we get a palindrome (58118481185).

The spelling of 12116220064 in words is "twelve billion, one hundred sixteen million, two hundred twenty thousand, sixty-four".