13420208668 has 24 divisors (see below), whose sum is σ = 25296360320. Its totient is φ = 6209103600.

The previous prime is 13420208621. The next prime is 13420208689. The reversal of 13420208668 is 86680202431.

It is a self number, because there is not a number n which added to its sum of digits gives 13420208668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2050008 + ... + 2056543.

Almost surely, 2^13420208668 is an apocalyptic number.

It is an amenable number.

13420208668 is a deficient number, since it is larger than the sum of its proper divisors (11876151652).

13420208668 is a wasteful number, since it uses less digits than its factorization.

13420208668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106617 (or 4106615 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 13420208668 in words is "thirteen billion, four hundred twenty million, two hundred eight thousand, six hundred sixty-eight".