133665787677242 has 16 divisors (see below), whose sum is σ = 204672237929280. Its totient is φ = 65450322519552.

The previous prime is 133665787677203. The next prime is 133665787677313. The reversal of 133665787677242 is 242776787566331.

It is a self number, because there is not a number n which added to its sum of digits gives 133665787677242.

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, 2153506823 + ... + 2153568890.

It is an arithmetic number, because the mean of its divisors is an integer number (12792014870580).

Almost surely, 2^{133665787677242} is an apocalyptic number.

133665787677242 is a deficient number, since it is larger than the sum of its proper divisors (71006450252038).

133665787677242 is a wasteful number, since it uses less digits than its factorization.

133665787677242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307076037.

The product of its digits is 2987228160, while the sum is 74.

The spelling of 133665787677242 in words is "one hundred thirty-three trillion, six hundred sixty-five billion, seven hundred eighty-seven million, six hundred seventy-seven thousand, two hundred forty-two".