2001055245361 has 2 divisors, whose sum is σ = 2001055245362. Its totient is φ = 2001055245360.

The previous prime is 2001055245323. The next prime is 2001055245367. The reversal of 2001055245361 is 1635425501002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1982872341025 + 18182904336 = 1408145^2 + 134844^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001055245361 - 2⁹ = 2001055244849 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001055245367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000527622680 + 1000527622681.

It is an arithmetic number, because the mean of its divisors is an integer number (1000527622681).

Almost surely, 2^{2001055245361} is an apocalyptic number.

It is an amenable number.

2001055245361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001055245361 is an equidigital number, since it uses as much as digits as its factorization.

2001055245361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 2001055245361 in words is "two trillion, one billion, fifty-five million, two hundred forty-five thousand, three hundred sixty-one".