133907600808 has 96 divisors (see below), whose sum is σ = 370889499240. Its totient is φ = 43634626560.

The previous prime is 133907600803. The next prime is 133907600857. The reversal of 133907600808 is 808006709331.

It is a happy number.

133907600808 is a `hidden beast` number, since 1 + 3 + 39 + 0 + 7 + 600 + 8 + 0 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 53797091364 + 80110509444 = 231942^2 + 283038^2 .

It is not an unprimeable number, because it can be changed into a prime (133907600803) 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, 481198 + ... + 706658.

Almost surely, 2^133907600808 is an apocalyptic number.

133907600808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133907600808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185444749620).

133907600808 is an abundant number, since it is smaller than the sum of its proper divisors (236981898432).

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

133907600808 is a wasteful number, since it uses less digits than its factorization.

133907600808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225659 (or 225652 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 133907600808 in words is "one hundred thirty-three billion, nine hundred seven million, six hundred thousand, eight hundred eight".