13666606135 has 16 divisors (see below), whose sum is σ = 20184526656. Its totient is φ = 8650510848.

The previous prime is 13666606133. The next prime is 13666606157. The reversal of 13666606135 is 53160666631.

It is not a de Polignac number, because 13666606135 - 2¹ = 13666606133 is a prime.

It is a super-2 number, since 2×13666606135² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13666606091 and 13666606100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13666606133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15017794 + ... + 15018703.

It is an arithmetic number, because the mean of its divisors is an integer number (1261532916).

Almost surely, 2^13666606135 is an apocalyptic number.

13666606135 is a deficient number, since it is larger than the sum of its proper divisors (6517920521).

13666606135 is a wasteful number, since it uses less digits than its factorization.

13666606135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30036522.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 13666606135 in words is "thirteen billion, six hundred sixty-six million, six hundred six thousand, one hundred thirty-five".