11967816684 has 12 divisors (see below), whose sum is σ = 27924905624. Its totient is φ = 3989272224.

The previous prime is 11967816683. The next prime is 11967816701. The reversal of 11967816684 is 48661876911.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (11967816683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498659017 + ... + 498659040.

Almost surely, 2^11967816684 is an apocalyptic number.

It is an amenable number.

11967816684 is an abundant number, since it is smaller than the sum of its proper divisors (15957088940).

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

11967816684 is a wasteful number, since it uses less digits than its factorization.

11967816684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997318064 (or 997318062 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 57.

The spelling of 11967816684 in words is "eleven billion, nine hundred sixty-seven million, eight hundred sixteen thousand, six hundred eighty-four".