1456241551561 has 2 divisors, whose sum is σ = 1456241551562. Its totient is φ = 1456241551560.

The previous prime is 1456241551511. The next prime is 1456241551603. The reversal of 1456241551561 is 1651551426541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 789732591561 + 666508960000 = 888669^2 + 816400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1456241551561 - 2⁷ = 1456241551433 is a prime.

It is not a weakly prime, because it can be changed into another prime (1456241551511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728120775780 + 728120775781.

It is an arithmetic number, because the mean of its divisors is an integer number (728120775781).

Almost surely, 2^{1456241551561} is an apocalyptic number.

It is an amenable number.

1456241551561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1456241551561 is an equidigital number, since it uses as much as digits as its factorization.

1456241551561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720000, while the sum is 46.

The spelling of 1456241551561 in words is "one trillion, four hundred fifty-six billion, two hundred forty-one million, five hundred fifty-one thousand, five hundred sixty-one".