133816712725021 has 8 divisors (see below), whose sum is σ = 134167267638144. Its totient is φ = 133466343346560.

The previous prime is 133816712725009. The next prime is 133816712725061. The reversal of 133816712725021 is 120527217618331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133816712725021 - 2³¹ = 133814565241373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133816712725061) 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, 44939220 + ... + 47824333.

It is an arithmetic number, because the mean of its divisors is an integer number (16770908454768).

Almost surely, 2^{133816712725021} is an apocalyptic number.

It is an amenable number.

133816712725021 is a deficient number, since it is larger than the sum of its proper divisors (350554913123).

133816712725021 is an equidigital number, since it uses as much as digits as its factorization.

133816712725021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92767331.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 133816712725021 in words is "one hundred thirty-three trillion, eight hundred sixteen billion, seven hundred twelve million, seven hundred twenty-five thousand, twenty-one".