164644601 has 4 divisors (see below), whose sum is σ = 179612304. Its totient is φ = 149676900.

The previous prime is 164644591. The next prime is 164644621. The reversal of 164644601 is 106446461.

164644601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164644601 - 2⁶ = 164644537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164644621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7483835 + ... + 7483856.

It is an arithmetic number, because the mean of its divisors is an integer number (44903076).

Almost surely, 2^164644601 is an apocalyptic number.

164644601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

164644601 is a deficient number, since it is larger than the sum of its proper divisors (14967703).

164644601 is a wasteful number, since it uses less digits than its factorization.

164644601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14967702.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 164644601 is about 12831.3912340011. The cubic root of 164644601 is about 548.0865752450.

The spelling of 164644601 in words is "one hundred sixty-four million, six hundred forty-four thousand, six hundred one".