1563301599961 has 2 divisors, whose sum is σ = 1563301599962. Its totient is φ = 1563301599960.

The previous prime is 1563301599949. The next prime is 1563301600097. The reversal of 1563301599961 is 1699951033651.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1409063961600 + 154237638361 = 1187040^2 + 392731^2 .

It is a cyclic number.

It is not a de Polignac number, because 1563301599961 - 2²³ = 1563293211353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1563301599896 and 1563301599905.

It is not a weakly prime, because it can be changed into another prime (1563301599911) 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, 781650799980 + 781650799981.

It is an arithmetic number, because the mean of its divisors is an integer number (781650799981).

Almost surely, 2^{1563301599961} is an apocalyptic number.

It is an amenable number.

1563301599961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1563301599961 is an equidigital number, since it uses as much as digits as its factorization.

1563301599961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5904900, while the sum is 58.

The spelling of 1563301599961 in words is "one trillion, five hundred sixty-three billion, three hundred one million, five hundred ninety-nine thousand, nine hundred sixty-one".