11681377763136 has 56 divisors (see below), whose sum is σ = 30907382720544. Its totient is φ = 3893741683200.

The previous prime is 11681377763117. The next prime is 11681377763197. The reversal of 11681377763136 is 63136777318611.

It is a self number, because there is not a number n which added to its sum of digits gives 11681377763136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16105911 + ... + 16815561.

Almost surely, 2^{11681377763136} is an apocalyptic number.

11681377763136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11681377763136 is an abundant number, since it is smaller than the sum of its proper divisors (19226004957408).

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

11681377763136 is an equidigital number, since it uses as much as digits as its factorization.

11681377763136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795399 (or 795389 counting only the distinct ones).

The product of its digits is 16003008, while the sum is 60.

The spelling of 11681377763136 in words is "eleven trillion, six hundred eighty-one billion, three hundred seventy-seven million, seven hundred sixty-three thousand, one hundred thirty-six".