11855689336 has 8 divisors (see below), whose sum is σ = 22229417520. Its totient is φ = 5927844664.

The previous prime is 11855689291. The next prime is 11855689337. The reversal of 11855689336 is 63398655811.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11855689337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740980576 + ... + 740980591.

It is an arithmetic number, because the mean of its divisors is an integer number (2778677190).

Almost surely, 2^11855689336 is an apocalyptic number.

It is an amenable number.

11855689336 is a deficient number, since it is larger than the sum of its proper divisors (10373728184).

11855689336 is a wasteful number, since it uses less digits than its factorization.

11855689336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481961173 (or 1481961169 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 55.

The spelling of 11855689336 in words is "eleven billion, eight hundred fifty-five million, six hundred eighty-nine thousand, three hundred thirty-six".