40544411177161 has 2 divisors, whose sum is σ = 40544411177162. Its totient is φ = 40544411177160.

The previous prime is 40544411177009. The next prime is 40544411177167. The reversal of 40544411177161 is 16177111444504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27362900673936 + 13181510503225 = 5230956^2 + 3630635^2 .

It is a cyclic number.

It is not a de Polignac number, because 40544411177161 - 2²³ = 40544402788553 is a prime.

It is not a weakly prime, because it can be changed into another prime (40544411177167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20272205588580 + 20272205588581.

It is an arithmetic number, because the mean of its divisors is an integer number (20272205588581).

Almost surely, 2^{40544411177161} is an apocalyptic number.

It is an amenable number.

40544411177161 is a deficient number, since it is larger than the sum of its proper divisors (1).

40544411177161 is an equidigital number, since it uses as much as digits as its factorization.

40544411177161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 40544411177161 in words is "forty trillion, five hundred forty-four billion, four hundred eleven million, one hundred seventy-seven thousand, one hundred sixty-one".