133636331798 has 16 divisors (see below), whose sum is σ = 214347389184. Its totient is φ = 62265033600.

The previous prime is 133636331779. The next prime is 133636331813. The reversal of 133636331798 is 897133636331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19454390 + ... + 19461257.

It is an arithmetic number, because the mean of its divisors is an integer number (13396711824).

Almost surely, 2^133636331798 is an apocalyptic number.

133636331798 is a deficient number, since it is larger than the sum of its proper divisors (80711057386).

133636331798 is a wasteful number, since it uses less digits than its factorization.

133636331798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38915767.

The product of its digits is 4408992, while the sum is 53.

The spelling of 133636331798 in words is "one hundred thirty-three billion, six hundred thirty-six million, three hundred thirty-one thousand, seven hundred ninety-eight".