12016636506656 has 12 divisors (see below), whose sum is σ = 23657753122542. Its totient is φ = 6008318253312.

The previous prime is 12016636506629. The next prime is 12016636506733. The reversal of 12016636506656 is 65660563661021.

It can be written as a sum of positive squares in only one way, i.e., 12012573719056 + 4062787600 = 3465916^2 + 63740^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12016636506598 and 12016636506607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187759945385 + ... + 187759945448.

Almost surely, 2^{12016636506656} is an apocalyptic number.

12016636506656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12016636506656 is a deficient number, since it is larger than the sum of its proper divisors (11641116615886).

12016636506656 is an equidigital number, since it uses as much as digits as its factorization.

12016636506656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375519890843 (or 375519890835 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 12016636506656 in words is "twelve trillion, sixteen billion, six hundred thirty-six million, five hundred six thousand, six hundred fifty-six".