164433563 has 12 divisors (see below), whose sum is σ = 191636280. Its totient is φ = 140680512.

The previous prime is 164433553. The next prime is 164433583. The reversal of 164433563 is 365334461.

It is not a de Polignac number, because 164433563 - 2⁴ = 164433547 is a prime.

It is a super-3 number, since 3×164433563³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164433553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26228 + ... + 31886.

It is an arithmetic number, because the mean of its divisors is an integer number (15969690).

Almost surely, 2^164433563 is an apocalyptic number.

164433563 is a deficient number, since it is larger than the sum of its proper divisors (27202717).

164433563 is an equidigital number, since it uses as much as digits as its factorization.

164433563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6266 (or 6259 counting only the distinct ones).

The product of its digits is 77760, while the sum is 35.

The square root of 164433563 is about 12823.1650929090. The cubic root of 164433563 is about 547.8522998237.

The spelling of 164433563 in words is "one hundred sixty-four million, four hundred thirty-three thousand, five hundred sixty-three".