667406022775255 has 16 divisors (see below), whose sum is σ = 843571744773120. Its totient is φ = 505503977132448.

The previous prime is 667406022775231. The next prime is 667406022775337. The reversal of 667406022775255 is 552577220604766.

It is a cyclic number.

It is not a de Polignac number, because 667406022775255 - 2³⁷ = 667268583821783 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2218840947 + ... + 2219141716.

It is an arithmetic number, because the mean of its divisors is an integer number (52723234048320).

Almost surely, 2^{667406022775255} is an apocalyptic number.

667406022775255 is a deficient number, since it is larger than the sum of its proper divisors (176165721997865).

667406022775255 is a wasteful number, since it uses less digits than its factorization.

667406022775255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4437984270.

The product of its (nonzero) digits is 296352000, while the sum is 64.

The spelling of 667406022775255 in words is "six hundred sixty-seven trillion, four hundred six billion, twenty-two million, seven hundred seventy-five thousand, two hundred fifty-five".