164360397864 has 64 divisors (see below), whose sum is σ = 465798715200. Its totient is φ = 47910721536.

The previous prime is 164360397841. The next prime is 164360397869. The reversal of 164360397864 is 468793063461.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (164360397869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13857129 + ... + 13868984.

It is an arithmetic number, because the mean of its divisors is an integer number (7278104925).

Almost surely, 2^164360397864 is an apocalyptic number.

It is an amenable number.

164360397864 is an abundant number, since it is smaller than the sum of its proper divisors (301438317336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164360397864 is a wasteful number, since it uses less digits than its factorization.

164360397864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27726154 (or 27726150 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 164360397864 in words is "one hundred sixty-four billion, three hundred sixty million, three hundred ninety-seven thousand, eight hundred sixty-four".