666703740410 has 8 divisors (see below), whose sum is σ = 1200066732756. Its totient is φ = 266681496160.

The previous prime is 666703740403. The next prime is 666703740419. The reversal of 666703740410 is 14047307666.

It can be written as a sum of positive squares in 2 ways, for example, as 568345608769 + 98358131641 = 753887^2 + 313621^2 .

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

It is not an unprimeable number, because it can be changed into a prime (666703740419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33335187011 + ... + 33335187030.

Almost surely, 2^666703740410 is an apocalyptic number.

666703740410 is a deficient number, since it is larger than the sum of its proper divisors (533362992346).

666703740410 is a wasteful number, since it uses less digits than its factorization.

666703740410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66670374048.

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 666703740410 in words is "six hundred sixty-six billion, seven hundred three million, seven hundred forty thousand, four hundred ten".