164663401 has 8 divisors (see below), whose sum is σ = 188265024. Its totient is φ = 141081360.

The previous prime is 164663381. The next prime is 164663437. The reversal of 164663401 is 104366461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164663401 - 2⁷ = 164663273 is a prime.

It is a super-2 number, since 2×164663401² = 54228071257773602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164661401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27006 + ... + 32536.

It is an arithmetic number, because the mean of its divisors is an integer number (23533128).

Almost surely, 2^164663401 is an apocalyptic number.

It is an amenable number.

164663401 is a deficient number, since it is larger than the sum of its proper divisors (23601623).

164663401 is an equidigital number, since it uses as much as digits as its factorization.

164663401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 164663401 is about 12832.1237914852. The cubic root of 164663401 is about 548.1074356020.

The spelling of 164663401 in words is "one hundred sixty-four million, six hundred sixty-three thousand, four hundred one".