666673236574 has 8 divisors (see below), whose sum is σ = 1000522949400. Its totient is φ = 333165586776.

The previous prime is 666673236553. The next prime is 666673236583. The reversal of 666673236574 is 475632376666.

666673236574 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 85510884 + ... + 85518679.

It is an arithmetic number, because the mean of its divisors is an integer number (125065368675).

Almost surely, 2^666673236574 is an apocalyptic number.

666673236574 is a deficient number, since it is larger than the sum of its proper divisors (333849712826).

666673236574 is a wasteful number, since it uses less digits than its factorization.

666673236574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171031514.

The product of its digits is 137168640, while the sum is 61.

The spelling of 666673236574 in words is "six hundred sixty-six billion, six hundred seventy-three million, two hundred thirty-six thousand, five hundred seventy-four".