74084017018666 has 8 divisors (see below), whose sum is σ = 111126719190564. Its totient is φ = 37041777288480.

The previous prime is 74084017018657. The next prime is 74084017018679. The reversal of 74084017018666 is 66681071048047.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66536991594441 + 7547025424225 = 8157021^2 + 2747185^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 74084017018666.

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 3 ways as a sum of consecutive naturals, for example, 115209645 + ... + 115850896.

Almost surely, 2^{74084017018666} is an apocalyptic number.

74084017018666 is a deficient number, since it is larger than the sum of its proper divisors (37042702171898).

74084017018666 is a wasteful number, since it uses less digits than its factorization.

74084017018666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231220856.

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 74084017018666 in words is "seventy-four trillion, eighty-four billion, seventeen million, eighteen thousand, six hundred sixty-six".