164663417 has 12 divisors (see below), whose sum is σ = 173962740. Its totient is φ = 155831808.

The previous prime is 164663381. The next prime is 164663437. The reversal of 164663417 is 714366461.

It can be written as a sum of positive squares in 2 ways, for example, as 83375161 + 81288256 = 9131^2 + 9016^2 .

It is not a de Polignac number, because 164663417 - 2²⁴ = 147886201 is a prime.

It is a super-2 number, since 2×164663417² = 54228081796231778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164663437) 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, 49709 + ... + 52917.

It is an arithmetic number, because the mean of its divisors is an integer number (14496895).

Almost surely, 2^164663417 is an apocalyptic number.

It is an amenable number.

164663417 is a deficient number, since it is larger than the sum of its proper divisors (9299323).

164663417 is an equidigital number, since it uses as much as digits as its factorization.

164663417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352 (or 3329 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 164663417 is about 12832.1244149205. The cubic root of 164663417 is about 548.1074533548.

The spelling of 164663417 in words is "one hundred sixty-four million, six hundred sixty-three thousand, four hundred seventeen".