666300375043 has 4 divisors (see below), whose sum is σ = 666302654248. Its totient is φ = 666298095840.

The previous prime is 666300375011. The next prime is 666300375089. The reversal of 666300375043 is 340573003666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 666300375043 - 2⁵ = 666300375011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666300375743) 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, 623046 + ... + 1311787.

It is an arithmetic number, because the mean of its divisors is an integer number (166575663562).

Almost surely, 2^666300375043 is an apocalyptic number.

666300375043 is a deficient number, since it is larger than the sum of its proper divisors (2279205).

666300375043 is a wasteful number, since it uses less digits than its factorization.

666300375043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279204.

The product of its (nonzero) digits is 816480, while the sum is 43.

The spelling of 666300375043 in words is "six hundred sixty-six billion, three hundred million, three hundred seventy-five thousand, forty-three".