66454335460001 has 2 divisors, whose sum is σ = 66454335460002. Its totient is φ = 66454335460000.

The previous prime is 66454335459991. The next prime is 66454335460069. The reversal of 66454335460001 is 10006453345466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35338031376400 + 31116304083601 = 5944580^2 + 5578199^2 .

It is a cyclic number.

It is not a de Polignac number, because 66454335460001 - 2³⁰ = 66453261718177 is a prime.

It is not a weakly prime, because it can be changed into another prime (66454335469001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33227167730000 + 33227167730001.

It is an arithmetic number, because the mean of its divisors is an integer number (33227167730001).

Almost surely, 2^{66454335460001} is an apocalyptic number.

It is an amenable number.

66454335460001 is a deficient number, since it is larger than the sum of its proper divisors (1).

66454335460001 is an equidigital number, since it uses as much as digits as its factorization.

66454335460001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 66454335460001 in words is "sixty-six trillion, four hundred fifty-four billion, three hundred thirty-five million, four hundred sixty thousand, one".