133666452646423 has 8 divisors (see below), whose sum is σ = 134240488355376. Its totient is φ = 133092420014400.

The previous prime is 133666452646403. The next prime is 133666452646427. The reversal of 133666452646423 is 324646254666331.

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 133666452646423 - 2³⁷ = 133529013692951 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 (133666452646427) 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, 147611028 + ... + 148513798.

It is an arithmetic number, because the mean of its divisors is an integer number (16780061044422).

Almost surely, 2^{133666452646423} is an apocalyptic number.

133666452646423 is a deficient number, since it is larger than the sum of its proper divisors (574035708953).

133666452646423 is an equidigital number, since it uses as much as digits as its factorization.

133666452646423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538465.

The product of its digits is 268738560, while the sum is 61.

The spelling of 133666452646423 in words is "one hundred thirty-three trillion, six hundred sixty-six billion, four hundred fifty-two million, six hundred forty-six thousand, four hundred twenty-three".