66734033670674 has 4 divisors (see below), whose sum is σ = 100101050506014. Its totient is φ = 33367016835336.

The previous prime is 66734033670671. The next prime is 66734033670677. The reversal of 66734033670674 is 47607633043766.

66734033670674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (66734033670671) and next prime (66734033670677).

It can be written as a sum of positive squares in only one way, i.e., 60431297895049 + 6302735775625 = 7773757^2 + 2510525^2 .

It is a super-2 number, since 2×66734033670674² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66734033670671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16683508417667 + ... + 16683508417670.

Almost surely, 2^{66734033670674} is an apocalyptic number.

66734033670674 is a deficient number, since it is larger than the sum of its proper divisors (33367016835340).

66734033670674 is a wasteful number, since it uses less digits than its factorization.

66734033670674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33367016835339.

The product of its (nonzero) digits is 192036096, while the sum is 62.

It can be divided in two parts, 66 and 734033670674, that multiplied together give a palindrome (48446222264484).

The spelling of 66734033670674 in words is "sixty-six trillion, seven hundred thirty-four billion, thirty-three million, six hundred seventy thousand, six hundred seventy-four".