66674006740067 has 4 divisors (see below), whose sum is σ = 67019467915080. Its totient is φ = 66328545565056.

The previous prime is 66674006740057. The next prime is 66674006740087. The reversal of 66674006740067 is 76004760047666.

66674006740067 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 a cyclic number.

It is not a de Polignac number, because 66674006740067 - 2⁴ = 66674006740051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66674006739988 and 66674006740015.

It is not an unprimeable number, because it can be changed into a prime (66674006740057) 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 in 3 ways as a sum of consecutive naturals, for example, 172730587217 + ... + 172730587602.

It is an arithmetic number, because the mean of its divisors is an integer number (16754866978770).

Almost surely, 2^{66674006740067} is an apocalyptic number.

66674006740067 is a deficient number, since it is larger than the sum of its proper divisors (345461175013).

66674006740067 is a wasteful number, since it uses less digits than its factorization.

66674006740067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345461175012.

The product of its (nonzero) digits is 42674688, while the sum is 59.

The spelling of 66674006740067 in words is "sixty-six trillion, six hundred seventy-four billion, six million, seven hundred forty thousand, sixty-seven".