664552122165175 has 72 divisors (see below), whose sum is σ = 852963926890608. Its totient is φ = 513494875238400.

The previous prime is 664552122165121. The next prime is 664552122165223. The reversal of 664552122165175 is 571561221255466.

664552122165175 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 664552122165175 - 2¹⁹ = 664552121640887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1975589799 + ... + 1975926151.

It is an arithmetic number, because the mean of its divisors is an integer number (11846721206814).

Almost surely, 2^{664552122165175} is an apocalyptic number.

664552122165175 is a deficient number, since it is larger than the sum of its proper divisors (188411804725433).

664552122165175 is a wasteful number, since it uses less digits than its factorization.

664552122165175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336869 (or 336803 counting only the distinct ones).

The product of its digits is 30240000, while the sum is 58.

The spelling of 664552122165175 in words is "six hundred sixty-four trillion, five hundred fifty-two billion, one hundred twenty-two million, one hundred sixty-five thousand, one hundred seventy-five".