11917796616 has 192 divisors, whose sum is σ = 36697752000. Its totient is φ = 3460907520.

The previous prime is 11917796599. The next prime is 11917796621. The reversal of 11917796616 is 61669771911.

11917796616 is a `hidden beast` number, since 1 + 1 + 9 + 17 + 7 + 9 + 6 + 616 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3190686 + ... + 3194418.

It is an arithmetic number, because the mean of its divisors is an integer number (191134125).

Almost surely, 2^11917796616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11917796616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18348876000).

11917796616 is an abundant number, since it is smaller than the sum of its proper divisors (24779955384).

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

11917796616 is a wasteful number, since it uses less digits than its factorization.

11917796616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3924 (or 3917 counting only the distinct ones).

The product of its digits is 857304, while the sum is 54.

The spelling of 11917796616 in words is "eleven billion, nine hundred seventeen million, seven hundred ninety-six thousand, six hundred sixteen".