12236642664 has 32 divisors (see below), whose sum is σ = 31418409120. Its totient is φ = 3968640576.

The previous prime is 12236642641. The next prime is 12236642699. The reversal of 12236642664 is 46624663221.

12236642664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6889114 + ... + 6890889.

It is an arithmetic number, because the mean of its divisors is an integer number (981825285).

Almost surely, 2^12236642664 is an apocalyptic number.

It is an amenable number.

12236642664 is an abundant number, since it is smaller than the sum of its proper divisors (19181766456).

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

12236642664 is a wasteful number, since it uses less digits than its factorization.

12236642664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13780049 (or 13780045 counting only the distinct ones).

The product of its digits is 497664, while the sum is 42.

The spelling of 12236642664 in words is "twelve billion, two hundred thirty-six million, six hundred forty-two thousand, six hundred sixty-four".