12036064681 has 9 divisors (see below), whose sum is σ = 12440364573. Its totient is φ = 11644513260.

The previous prime is 12036064661. The next prime is 12036064709. The reversal of 12036064681 is 18646063021.

It is a happy number.

The square root of 12036064681 is 109709.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-12036064681 is a prime.

It is a super-2 number, since 2×12036064681² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12036064681.

It is not an unprimeable number, because it can be changed into a prime (12036064631) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 3399210 + ... + 3402748.

Almost surely, 2^12036064681 is an apocalyptic number.

12036064681 is the 109709-th square number.

12036064681 is the 54855-th centered octagonal number.

It is an amenable number.

12036064681 is a deficient number, since it is larger than the sum of its proper divisors (404299892).

12036064681 is an frugal number, since it uses more digits than its factorization.

12036064681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7140 (or 3570 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 12036064681 in words is "twelve billion, thirty-six million, sixty-four thousand, six hundred eighty-one".