68636183616 has 504 divisors, whose sum is σ = 265625665344. Its totient is φ = 16454430720.

The previous prime is 68636183597. The next prime is 68636183647. The reversal of 68636183616 is 61638163686.

68636183616 is a `hidden beast` number, since 6 + 8 + 6 + 3 + 6 + 18 + 3 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7490910 + ... + 7500066.

Almost surely, 2^68636183616 is an apocalyptic number.

68636183616 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68636183616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132812832672).

68636183616 is an abundant number, since it is smaller than the sum of its proper divisors (196989481728).

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

68636183616 is a wasteful number, since it uses less digits than its factorization.

68636183616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9219 (or 9193 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

It can be divided in two parts, 68636 and 183616, that added together give a palindrome (252252).

The spelling of 68636183616 in words is "sixty-eight billion, six hundred thirty-six million, one hundred eighty-three thousand, six hundred sixteen".