133666210859471 has 8 divisors (see below), whose sum is σ = 133738622481024. Its totient is φ = 133593813700480.

The previous prime is 133666210859459. The next prime is 133666210859491. The reversal of 133666210859471 is 174958012666331.

It is a happy number.

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 133666210859471 - 2⁶ = 133666210859407 is a prime.

It is a super-3 number, since 3×133666210859471³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133666210859491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14899475 + ... + 22120731.

It is an arithmetic number, because the mean of its divisors is an integer number (16717327810128).

It is a 1-persistent number, because it is pandigital, but 2⋅133666210859471 = 267332421718942 is not.

Almost surely, 2^{133666210859471} is an apocalyptic number.

133666210859471 is a deficient number, since it is larger than the sum of its proper divisors (72411621553).

133666210859471 is an equidigital number, since it uses as much as digits as its factorization.

133666210859471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7231281.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 133666210859471 in words is "one hundred thirty-three trillion, six hundred sixty-six billion, two hundred ten million, eight hundred fifty-nine thousand, four hundred seventy-one".