133021023236661 has 8 divisors (see below), whose sum is σ = 202698702074944. Its totient is φ = 76012013278080.

The previous prime is 133021023236573. The next prime is 133021023236669. The reversal of 133021023236661 is 166632320120331.

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

It is not a de Polignac number, because 133021023236661 - 2⁹ = 133021023236149 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 (133021023236669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3167167219900 + ... + 3167167219941.

It is an arithmetic number, because the mean of its divisors is an integer number (25337337759368).

Almost surely, 2^{133021023236661} is an apocalyptic number.

It is an amenable number.

133021023236661 is a deficient number, since it is larger than the sum of its proper divisors (69677678838283).

133021023236661 is an equidigital number, since it uses as much as digits as its factorization.

133021023236661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6334334439851.

The product of its (nonzero) digits is 139968, while the sum is 39.

Adding to 133021023236661 its reverse (166632320120331), we get a palindrome (299653343356992).

The spelling of 133021023236661 in words is "one hundred thirty-three trillion, twenty-one billion, twenty-three million, two hundred thirty-six thousand, six hundred sixty-one".