667420406305 has 8 divisors (see below), whose sum is σ = 835726421952. Its totient is φ = 510721702128.

The previous prime is 667420406297. The next prime is 667420406311. The reversal of 667420406305 is 503604024766.

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

It is a cyclic number.

It is not a de Polignac number, because 667420406305 - 2³ = 667420406297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2901827739 + ... + 2901827968.

It is an arithmetic number, because the mean of its divisors is an integer number (104465802744).

Almost surely, 2^667420406305 is an apocalyptic number.

It is an amenable number.

667420406305 is a deficient number, since it is larger than the sum of its proper divisors (168306015647).

667420406305 is a wasteful number, since it uses less digits than its factorization.

667420406305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803655735.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 667420406305 in words is "six hundred sixty-seven billion, four hundred twenty million, four hundred six thousand, three hundred five".