666740037074 has 8 divisors (see below), whose sum is σ = 1027140057228. Its totient is φ = 324360018000.

The previous prime is 666740037053. The next prime is 666740037083. The reversal of 666740037074 is 470730047666.

It can be written as a sum of positive squares in 2 ways, for example, as 556254930625 + 110485106449 = 745825^2 + 332393^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4505000177 + ... + 4505000324.

Almost surely, 2^666740037074 is an apocalyptic number.

666740037074 is a deficient number, since it is larger than the sum of its proper divisors (360400020154).

666740037074 is a wasteful number, since it uses less digits than its factorization.

666740037074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010000540.

The product of its (nonzero) digits is 3556224, while the sum is 50.

The spelling of 666740037074 in words is "six hundred sixty-six billion, seven hundred forty million, thirty-seven thousand, seventy-four".