133355680 has 48 divisors (see below), whose sum is σ = 331642080. Its totient is φ = 50533632.

The previous prime is 133355669. The next prime is 133355683. The reversal of 133355680 is 86553331.

It is not an unprimeable number, because it can be changed into a prime (133355683) 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, 18894 + ... + 24973.

It is an arithmetic number, because the mean of its divisors is an integer number (6909210).

Almost surely, 2^133355680 is an apocalyptic number.

133355680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133355680 is an abundant number, since it is smaller than the sum of its proper divisors (198286400).

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

133355680 is a wasteful number, since it uses less digits than its factorization.

133355680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43901 (or 43893 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 133355680 is about 11547.9729823030. The cubic root of 133355680 is about 510.9014941038.

The spelling of 133355680 in words is "one hundred thirty-three million, three hundred fifty-five thousand, six hundred eighty".