133216775549 has 8 divisors (see below), whose sum is σ = 156506421792. Its totient is φ = 111790301040.

The previous prime is 133216775507. The next prime is 133216775569. The reversal of 133216775549 is 945577612331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133216775549 - 2¹² = 133216771453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133216775549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133216775569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465792779 + ... + 465793064.

It is an arithmetic number, because the mean of its divisors is an integer number (19563302724).

Almost surely, 2^133216775549 is an apocalyptic number.

It is an amenable number.

133216775549 is a deficient number, since it is larger than the sum of its proper divisors (23289646243).

133216775549 is a wasteful number, since it uses less digits than its factorization.

133216775549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931585867.

The product of its digits is 4762800, while the sum is 53.

The spelling of 133216775549 in words is "one hundred thirty-three billion, two hundred sixteen million, seven hundred seventy-five thousand, five hundred forty-nine".