66430417213 has 8 divisors (see below), whose sum is σ = 67524412536. Its totient is φ = 65336582400.

The previous prime is 66430417211. The next prime is 66430417237. The reversal of 66430417213 is 31271403466.

It can be written as a sum of positive squares in 4 ways, for example, as 3167100729 + 63263316484 = 56277^2 + 251522^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66430417213 - 2¹ = 66430417211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66430417211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025145 + ... + 1088017.

It is an arithmetic number, because the mean of its divisors is an integer number (8440551567).

Almost surely, 2^66430417213 is an apocalyptic number.

It is an amenable number.

66430417213 is a deficient number, since it is larger than the sum of its proper divisors (1093995323).

66430417213 is a wasteful number, since it uses less digits than its factorization.

66430417213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80255.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 66430417213 in words is "sixty-six billion, four hundred thirty million, four hundred seventeen thousand, two hundred thirteen".