13408066806667 has 4 divisors (see below), whose sum is σ = 14439456561040. Its totient is φ = 12376677052296.

The previous prime is 13408066806643. The next prime is 13408066806677. The reversal of 13408066806667 is 76660866080431.

It is a happy number.

13408066806667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13408066806667 - 2¹¹ = 13408066804619 is a prime.

It is a super-3 number, since 3×13408066806667³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13408066806637) 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, 515694877167 + ... + 515694877192.

It is an arithmetic number, because the mean of its divisors is an integer number (3609864140260).

Almost surely, 2^{13408066806667} is an apocalyptic number.

13408066806667 is a deficient number, since it is larger than the sum of its proper divisors (1031389754373).

13408066806667 is a wasteful number, since it uses less digits than its factorization.

13408066806667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031389754372.

The product of its (nonzero) digits is 41803776, while the sum is 61.

The spelling of 13408066806667 in words is "thirteen trillion, four hundred eight billion, sixty-six million, eight hundred six thousand, six hundred sixty-seven".