133995785535 has 96 divisors (see below), whose sum is σ = 248285606400. Its totient is φ = 66653072640.

The previous prime is 133995785519. The next prime is 133995785569. The reversal of 133995785535 is 535587599331.

133995785535 is a `hidden beast` number, since 1 + 3 + 3 + 9 + 9 + 5 + 78 + 553 + 5 = 666.

It is not a de Polignac number, because 133995785535 - 2⁴ = 133995785519 is a prime.

It is a super-2 number, since 2×133995785535² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 61493076 + ... + 61495254.

It is an arithmetic number, because the mean of its divisors is an integer number (2586308400).

Almost surely, 2^133995785535 is an apocalyptic number.

133995785535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133995785535 is a deficient number, since it is larger than the sum of its proper divisors (114289820865).

133995785535 is a wasteful number, since it uses less digits than its factorization.

133995785535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293 (or 3290 counting only the distinct ones).

The product of its digits is 76545000, while the sum is 63.

The spelling of 133995785535 in words is "one hundred thirty-three billion, nine hundred ninety-five million, seven hundred eighty-five thousand, five hundred thirty-five".