133333355790 has 48 divisors (see below), whose sum is σ = 346904672400. Its totient is φ = 35531156736.

The previous prime is 133333355717. The next prime is 133333355791. The reversal of 133333355790 is 97553333331.

133333355790 is a `hidden beast` number, since 1 + 3 + 3 + 3 + 3 + 3 + 3 + 557 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133333355791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376395 + ... + 639014.

It is an arithmetic number, because the mean of its divisors is an integer number (7227180675).

Almost surely, 2^133333355790 is an apocalyptic number.

133333355790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133333355790 is an abundant number, since it is smaller than the sum of its proper divisors (213571316610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133333355790 is a wasteful number, since it uses less digits than its factorization.

133333355790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016881 (or 1016878 counting only the distinct ones).

The product of its (nonzero) digits is 1148175, while the sum is 45.

The spelling of 133333355790 in words is "one hundred thirty-three billion, three hundred thirty-three million, three hundred fifty-five thousand, seven hundred ninety".