66080572737563 has 2 divisors, whose sum is σ = 66080572737564. Its totient is φ = 66080572737562.

The previous prime is 66080572737559. The next prime is 66080572737637. The reversal of 66080572737563 is 36573727508066.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66080572737563 - 2² = 66080572737559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66080572737563.

It is not a weakly prime, because it can be changed into another prime (66080572737533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33040286368781 + 33040286368782.

It is an arithmetic number, because the mean of its divisors is an integer number (33040286368782).

Almost surely, 2^{66080572737563} is an apocalyptic number.

66080572737563 is a deficient number, since it is larger than the sum of its proper divisors (1).

66080572737563 is an equidigital number, since it uses as much as digits as its factorization.

66080572737563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 266716800, while the sum is 65.

The spelling of 66080572737563 in words is "sixty-six trillion, eighty billion, five hundred seventy-two million, seven hundred thirty-seven thousand, five hundred sixty-three".