133165426505677 has 2 divisors, whose sum is σ = 133165426505678. Its totient is φ = 133165426505676.

The previous prime is 133165426505623. The next prime is 133165426505687. The reversal of 133165426505677 is 776505624561331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133163545201801 + 1881303876 = 11539651^2 + 43374^2 .

It is a cyclic number.

It is not a de Polignac number, because 133165426505677 - 2¹⁹ = 133165425981389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133165426505687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66582713252838 + 66582713252839.

It is an arithmetic number, because the mean of its divisors is an integer number (66582713252839).

Almost surely, 2^{133165426505677} is an apocalyptic number.

It is an amenable number.

133165426505677 is a deficient number, since it is larger than the sum of its proper divisors (1).

133165426505677 is an equidigital number, since it uses as much as digits as its factorization.

133165426505677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256000, while the sum is 61.

The spelling of 133165426505677 in words is "one hundred thirty-three trillion, one hundred sixty-five billion, four hundred twenty-six million, five hundred five thousand, six hundred seventy-seven".