164512864 has 12 divisors (see below), whose sum is σ = 323884764. Its totient is φ = 82256416.

The previous prime is 164512861. The next prime is 164512867. The reversal of 164512864 is 468215461.

It is an interprime number because it is at equal distance from previous prime (164512861) and next prime (164512867).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164512861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2570482 + ... + 2570545.

It is an arithmetic number, because the mean of its divisors is an integer number (26990397).

Almost surely, 2^164512864 is an apocalyptic number.

It is an amenable number.

164512864 is a deficient number, since it is larger than the sum of its proper divisors (159371900).

164512864 is an equidigital number, since it uses as much as digits as its factorization.

164512864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5141037 (or 5141029 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 164512864 is about 12826.2568195090. The cubic root of 164512864 is about 547.9403561634.

The spelling of 164512864 in words is "one hundred sixty-four million, five hundred twelve thousand, eight hundred sixty-four".