133023163354661 has 2 divisors, whose sum is σ = 133023163354662. Its totient is φ = 133023163354660.

The previous prime is 133023163354603. The next prime is 133023163354891. The reversal of 133023163354661 is 166453361320331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131326878522436 + 1696284832225 = 11459794^2 + 1302415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133023163354661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133023163354261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66511581677330 + 66511581677331.

It is an arithmetic number, because the mean of its divisors is an integer number (66511581677331).

Almost surely, 2^{133023163354661} is an apocalyptic number.

It is an amenable number.

133023163354661 is a deficient number, since it is larger than the sum of its proper divisors (1).

133023163354661 is an equidigital number, since it uses as much as digits as its factorization.

133023163354661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 47.

The spelling of 133023163354661 in words is "one hundred thirty-three trillion, twenty-three billion, one hundred sixty-three million, three hundred fifty-four thousand, six hundred sixty-one".