66344265435005 has 8 divisors (see below), whose sum is σ = 79691094158424. Its totient is φ = 53023428590400.

The previous prime is 66344265434999. The next prime is 66344265435079. The reversal of 66344265435005 is 50053456244366.

It can be written as a sum of positive squares in 4 ways, for example, as 5460905312164 + 60883360122841 = 2336858^2 + 7802779^2 .

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

It is not a de Polignac number, because 66344265435005 - 2¹⁰ = 66344265433981 is a prime.

It is a super-2 number, since 2×66344265435005² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6497964086 + ... + 6497974295.

It is an arithmetic number, because the mean of its divisors is an integer number (9961386769803).

Almost surely, 2^{66344265435005} is an apocalyptic number.

It is an amenable number.

66344265435005 is a deficient number, since it is larger than the sum of its proper divisors (13346828723419).

66344265435005 is a wasteful number, since it uses less digits than its factorization.

66344265435005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12995939407.

The product of its (nonzero) digits is 31104000, while the sum is 53.

The spelling of 66344265435005 in words is "sixty-six trillion, three hundred forty-four billion, two hundred sixty-five million, four hundred thirty-five thousand, five".