66014632325633 has 4 divisors (see below), whose sum is σ = 66014652948180. Its totient is φ = 66014611703088.

The previous prime is 66014632325623. The next prime is 66014632325641. The reversal of 66014632325633 is 33652323641066.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12226826969344 + 53787805356289 = 3496688^2 + 7334017^2 .

It is a cyclic number.

It is not a de Polignac number, because 66014632325633 - 2⁴ = 66014632325617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66014632325623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4367618 + ... + 12292491.

It is an arithmetic number, because the mean of its divisors is an integer number (16503663237045).

Almost surely, 2^{66014632325633} is an apocalyptic number.

It is an amenable number.

66014632325633 is a deficient number, since it is larger than the sum of its proper divisors (20622547).

66014632325633 is a wasteful number, since it uses less digits than its factorization.

66014632325633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20622546.

The product of its (nonzero) digits is 8398080, while the sum is 50.

Adding to 66014632325633 its reverse (33652323641066), we get a palindrome (99666955966699).

The spelling of 66014632325633 in words is "sixty-six trillion, fourteen billion, six hundred thirty-two million, three hundred twenty-five thousand, six hundred thirty-three".