11681554214736 has 120 divisors (see below), whose sum is σ = 37481801140160. Its totient is φ = 3326923611648.

The previous prime is 11681554214711. The next prime is 11681554214767. The reversal of 11681554214736 is 63741245518611.

11681554214736 is a `hidden beast` number, since 1 + 1 + 6 + 8 + 1 + 554 + 2 + 14 + 73 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18197026 + ... + 18828033.

Almost surely, 2^{11681554214736} is an apocalyptic number.

11681554214736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11681554214736 is an abundant number, since it is smaller than the sum of its proper divisors (25800246925424).

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

11681554214736 is a wasteful number, since it uses less digits than its factorization.

11681554214736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37025393 (or 37025384 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 11681554214736 in words is "eleven trillion, six hundred eighty-one billion, five hundred fifty-four million, two hundred fourteen thousand, seven hundred thirty-six".