133236121344720 has 80 divisors (see below), whose sum is σ = 424195002579840. Its totient is φ = 34569372022272.

The previous prime is 133236121344707. The next prime is 133236121344737. The reversal of 133236121344720 is 27443121632331.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7502024980 + ... + 7502042739.

It is an arithmetic number, because the mean of its divisors is an integer number (5302437532248).

Almost surely, 2^{133236121344720} is an apocalyptic number.

133236121344720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133236121344720 is an abundant number, since it is smaller than the sum of its proper divisors (290958881235120).

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

133236121344720 is a wasteful number, since it uses less digits than its factorization.

133236121344720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15004067772 (or 15004067766 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 133236121344720 in words is "one hundred thirty-three trillion, two hundred thirty-six billion, one hundred twenty-one million, three hundred forty-four thousand, seven hundred twenty".