164465512 has 8 divisors (see below), whose sum is σ = 308372850. Its totient is φ = 82232752.

The previous prime is 164465489. The next prime is 164465513. The reversal of 164465512 is 215564461.

164465512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 99082116 + 65383396 = 9954^2 + 8086^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (164465513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10279087 + ... + 10279102.

Almost surely, 2^164465512 is an apocalyptic number.

It is an amenable number.

164465512 is a deficient number, since it is larger than the sum of its proper divisors (143907338).

164465512 is a wasteful number, since it uses less digits than its factorization.

164465512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20558195 (or 20558191 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 164465512 is about 12824.4107856852. The cubic root of 164465512 is about 547.8877796032.

The spelling of 164465512 in words is "one hundred sixty-four million, four hundred sixty-five thousand, five hundred twelve".