133640402604977 has 2 divisors, whose sum is σ = 133640402604978. Its totient is φ = 133640402604976.

The previous prime is 133640402604899. The next prime is 133640402605051. The reversal of 133640402604977 is 779406204046331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128762669748496 + 4877732856481 = 11347364^2 + 2208559^2 .

It is a cyclic number.

It is not a de Polignac number, because 133640402604977 - 2¹⁸ = 133640402342833 is a prime.

It is not a weakly prime, because it can be changed into another prime (133640402604277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66820201302488 + 66820201302489.

It is an arithmetic number, because the mean of its divisors is an integer number (66820201302489).

Almost surely, 2^{133640402604977} is an apocalyptic number.

It is an amenable number.

133640402604977 is a deficient number, since it is larger than the sum of its proper divisors (1).

133640402604977 is an equidigital number, since it uses as much as digits as its factorization.

133640402604977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 56.

The spelling of 133640402604977 in words is "one hundred thirty-three trillion, six hundred forty billion, four hundred two million, six hundred four thousand, nine hundred seventy-seven".