66667340074 has 16 divisors (see below), whose sum is σ = 103720620456. Its totient is φ = 32111640000.

The previous prime is 66667340039. The next prime is 66667340119. The reversal of 66667340074 is 47004376666.

It can be written as a sum of positive squares in 4 ways, for example, as 61556091025 + 5111249049 = 248105^2 + 71493^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4452477 + ... + 4467424.

Almost surely, 2^66667340074 is an apocalyptic number.

66667340074 is a deficient number, since it is larger than the sum of its proper divisors (37053280382).

66667340074 is a wasteful number, since it uses less digits than its factorization.

66667340074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8920041.

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 66667340074 in words is "sixty-six billion, six hundred sixty-seven million, three hundred forty thousand, seventy-four".