145566543457 has 2 divisors, whose sum is σ = 145566543458. Its totient is φ = 145566543456.

The previous prime is 145566543443. The next prime is 145566543503. The reversal of 145566543457 is 754345665541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128017977616 + 17548565841 = 357796^2 + 132471^2 .

It is a cyclic number.

It is not a de Polignac number, because 145566543457 - 2¹⁹ = 145566019169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145566543398 and 145566543407.

It is not a weakly prime, because it can be changed into another prime (145566543407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72783271728 + 72783271729.

It is an arithmetic number, because the mean of its divisors is an integer number (72783271729).

Almost surely, 2^145566543457 is an apocalyptic number.

It is an amenable number.

145566543457 is a deficient number, since it is larger than the sum of its proper divisors (1).

145566543457 is an equidigital number, since it uses as much as digits as its factorization.

145566543457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240000, while the sum is 55.

The spelling of 145566543457 in words is "one hundred forty-five billion, five hundred sixty-six million, five hundred forty-three thousand, four hundred fifty-seven".