135548686669 has 16 divisors (see below), whose sum is σ = 157764822336. Its totient is φ = 115092140800.

The previous prime is 135548686643. The next prime is 135548686673. The reversal of 135548686669 is 966686845531.

It is a cyclic number.

It is not a de Polignac number, because 135548686669 - 2³¹ = 133401203021 is a prime.

It is a super-2 number, since 2×135548686669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135548686699) 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, 2742142 + ... + 2791135.

It is an arithmetic number, because the mean of its divisors is an integer number (9860301396).

Almost surely, 2^135548686669 is an apocalyptic number.

It is an amenable number.

135548686669 is a deficient number, since it is larger than the sum of its proper divisors (22216135667).

135548686669 is a wasteful number, since it uses less digits than its factorization.

135548686669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533436.

The product of its digits is 223948800, while the sum is 67.

The spelling of 135548686669 in words is "one hundred thirty-five billion, five hundred forty-eight million, six hundred eighty-six thousand, six hundred sixty-nine".