667420406303 has 4 divisors (see below), whose sum is σ = 762766178640. Its totient is φ = 572074633968.

The previous prime is 667420406297. The next prime is 667420406311. The reversal of 667420406303 is 303604024766.

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 667420406303 - 2¹⁶ = 667420340767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667420409303) 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, 47672886158 + ... + 47672886171.

It is an arithmetic number, because the mean of its divisors is an integer number (190691544660).

Almost surely, 2^667420406303 is an apocalyptic number.

667420406303 is a deficient number, since it is larger than the sum of its proper divisors (95345772337).

667420406303 is an equidigital number, since it uses as much as digits as its factorization.

667420406303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95345772336.

The product of its (nonzero) digits is 435456, while the sum is 41.

The spelling of 667420406303 in words is "six hundred sixty-seven billion, four hundred twenty million, four hundred six thousand, three hundred three".