133859900720 has 80 divisors (see below), whose sum is σ = 383045275200. Its totient is φ = 42364449792.

The previous prime is 133859900711. The next prime is 133859900729. The reversal of 133859900720 is 27009958331.

It is an interprime number because it is at equal distance from previous prime (133859900711) and next prime (133859900729).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (133859900729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9186395 + ... + 9200954.

It is an arithmetic number, because the mean of its divisors is an integer number (4788065940).

Almost surely, 2^133859900720 is an apocalyptic number.

133859900720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133859900720 is an abundant number, since it is smaller than the sum of its proper divisors (249185374480).

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

133859900720 is a wasteful number, since it uses less digits than its factorization.

133859900720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18387382 (or 18387376 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 133859900720 in words is "one hundred thirty-three billion, eight hundred fifty-nine million, nine hundred thousand, seven hundred twenty".