164432465 has 16 divisors (see below), whose sum is σ = 204584400. Its totient is φ = 126723072.

The previous prime is 164432459. The next prime is 164432467. The reversal of 164432465 is 564234461.

It can be written as a sum of positive squares in 8 ways, for example, as 2430481 + 162001984 = 1559^2 + 12728^2 .

It is a cyclic number.

It is not a de Polignac number, because 164432465 - 2¹⁴ = 164416081 is a prime.

It is a super-3 number, since 3×164432465³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164432467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81509 + ... + 83501.

It is an arithmetic number, because the mean of its divisors is an integer number (12786525).

Almost surely, 2^164432465 is an apocalyptic number.

It is an amenable number.

164432465 is a deficient number, since it is larger than the sum of its proper divisors (40151935).

164432465 is a wasteful number, since it uses less digits than its factorization.

164432465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596.

The product of its digits is 69120, while the sum is 35.

The square root of 164432465 is about 12823.1222796946. The cubic root of 164432465 is about 547.8510803988.

The spelling of 164432465 in words is "one hundred sixty-four million, four hundred thirty-two thousand, four hundred sixty-five".