13406800668 has 24 divisors (see below), whose sum is σ = 32128009872. Its totient is φ = 4348151424.

The previous prime is 13406800651. The next prime is 13406800669. The reversal of 13406800668 is 86600860431.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13406800669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15097305 + ... + 15098192.

It is an arithmetic number, because the mean of its divisors is an integer number (1338667078).

Almost surely, 2^13406800668 is an apocalyptic number.

It is an amenable number.

13406800668 is an abundant number, since it is smaller than the sum of its proper divisors (18721209204).

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

13406800668 is a wasteful number, since it uses less digits than its factorization.

13406800668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30195541 (or 30195539 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 13406800668 in words is "thirteen billion, four hundred six million, eight hundred thousand, six hundred sixty-eight".