16693471368 has 192 divisors, whose sum is σ = 54961320960. Its totient is φ = 4468359168.

The previous prime is 16693471313. The next prime is 16693471391. The reversal of 16693471368 is 86317439661.

It is a happy number.

16693471368 is a `hidden beast` number, since 166 + 9 + 3 + 471 + 3 + 6 + 8 = 666.

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 47 ways as a sum of consecutive naturals, for example, 1906296 + ... + 1915032.

It is an arithmetic number, because the mean of its divisors is an integer number (286256880).

Almost surely, 2^16693471368 is an apocalyptic number.

16693471368 is a gapful number since it is divisible by the number (18) 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 16693471368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27480660480).

16693471368 is an abundant number, since it is smaller than the sum of its proper divisors (38267849592).

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

16693471368 is a wasteful number, since it uses less digits than its factorization.

16693471368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8996 (or 8989 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 16693471368 in words is "sixteen billion, six hundred ninety-three million, four hundred seventy-one thousand, three hundred sixty-eight".