133187134427480 has 128 divisors (see below), whose sum is σ = 353585503272960. Its totient is φ = 44184057984000.

The previous prime is 133187134427453. The next prime is 133187134427497. The reversal of 133187134427480 is 84724431781331.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53208860 + ... + 55655700.

It is an arithmetic number, because the mean of its divisors is an integer number (2762386744320).

Almost surely, 2^{133187134427480} is an apocalyptic number.

133187134427480 is a gapful number since it is divisible by the number (10) 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 133187134427480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176792751636480).

133187134427480 is an abundant number, since it is smaller than the sum of its proper divisors (220398368845480).

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

133187134427480 is a wasteful number, since it uses less digits than its factorization.

133187134427480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453161 (or 2453157 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 56.

The spelling of 133187134427480 in words is "one hundred thirty-three trillion, one hundred eighty-seven billion, one hundred thirty-four million, four hundred twenty-seven thousand, four hundred eighty".