361255643057641 has 2 divisors, whose sum is σ = 361255643057642. Its totient is φ = 361255643057640.

The previous prime is 361255643057597. The next prime is 361255643057677. The reversal of 361255643057641 is 146750346552163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 333793630800400 + 27462012257241 = 18270020^2 + 5240421^2 .

It is a cyclic number.

It is not a de Polignac number, because 361255643057641 - 2⁴³ = 352459550035433 is a prime.

It is not a weakly prime, because it can be changed into another prime (361255644057641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180627821528820 + 180627821528821.

It is an arithmetic number, because the mean of its divisors is an integer number (180627821528821).

Almost surely, 2^{361255643057641} is an apocalyptic number.

It is an amenable number.

361255643057641 is a deficient number, since it is larger than the sum of its proper divisors (1).

361255643057641 is an equidigital number, since it uses as much as digits as its factorization.

361255643057641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432000, while the sum is 58.

The spelling of 361255643057641 in words is "three hundred sixty-one trillion, two hundred fifty-five billion, six hundred forty-three million, fifty-seven thousand, six hundred forty-one".