164096639 has 24 divisors (see below), whose sum is σ = 196130160. Its totient is φ = 136840704.

The previous prime is 164096633. The next prime is 164096663. The reversal of 164096639 is 936690461.

It is not a de Polignac number, because 164096639 - 2⁴ = 164096623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164096639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164096633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 464687 + ... + 465039.

It is an arithmetic number, because the mean of its divisors is an integer number (8172090).

Almost surely, 2^164096639 is an apocalyptic number.

164096639 is a deficient number, since it is larger than the sum of its proper divisors (32033521).

164096639 is a wasteful number, since it uses less digits than its factorization.

164096639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 164096639 is about 12810.0210382341. The cubic root of 164096639 is about 547.4778612567.

The spelling of 164096639 in words is "one hundred sixty-four million, ninety-six thousand, six hundred thirty-nine".