13600399668 has 12 divisors (see below), whose sum is σ = 31734265920. Its totient is φ = 4533466552.

The previous prime is 13600399661. The next prime is 13600399669. The reversal of 13600399668 is 86699300631.

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

It is a super-3 number, since 3×13600399668³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 13600399668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13600399661) 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, 566683308 + ... + 566683331.

It is an arithmetic number, because the mean of its divisors is an integer number (2644522160).

Almost surely, 2^13600399668 is an apocalyptic number.

It is an amenable number.

13600399668 is an abundant number, since it is smaller than the sum of its proper divisors (18133866252).

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

13600399668 is a wasteful number, since it uses less digits than its factorization.

13600399668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133366646 (or 1133366644 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 51.

The spelling of 13600399668 in words is "thirteen billion, six hundred million, three hundred ninety-nine thousand, six hundred sixty-eight".