135166355779 has 16 divisors (see below), whose sum is σ = 167460321280. Its totient is φ = 106236554400.

The previous prime is 135166355773. The next prime is 135166355783. The reversal of 135166355779 is 977553661531.

It is a cyclic number.

It is not a de Polignac number, because 135166355779 - 2¹³ = 135166347587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135166355773) 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, 4904619 + ... + 4932100.

It is an arithmetic number, because the mean of its divisors is an integer number (10466270080).

Almost surely, 2^135166355779 is an apocalyptic number.

135166355779 is a deficient number, since it is larger than the sum of its proper divisors (32293965501).

135166355779 is a wasteful number, since it uses less digits than its factorization.

135166355779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9836890.

The product of its digits is 17860500, while the sum is 58.

The spelling of 135166355779 in words is "one hundred thirty-five billion, one hundred sixty-six million, three hundred fifty-five thousand, seven hundred seventy-nine".