11916681236278 has 256 divisors, whose sum is σ = 23275929600000. Its totient is φ = 4450217241600.

The previous prime is 11916681236231. The next prime is 11916681236297. The reversal of 11916681236278 is 87263218661911.

It is a partition number, being equal to the number of ways a set of 213 identical objects can be partitioned into subset.

It is a congruent number.

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 in 127 ways as a sum of consecutive naturals, for example, 23881124473 + ... + 23881124971.

It is an arithmetic number, because the mean of its divisors is an integer number (90921600000).

Almost surely, 2^{11916681236278} is an apocalyptic number.

11916681236278 is a deficient number, since it is larger than the sum of its proper divisors (11359248363722).

11916681236278 is a wasteful number, since it uses less digits than its factorization.

11916681236278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its digits is 10450944, while the sum is 61.

The spelling of 11916681236278 in words is "eleven trillion, nine hundred sixteen billion, six hundred eighty-one million, two hundred thirty-six thousand, two hundred seventy-eight".