164805328438 has 8 divisors (see below), whose sum is σ = 247496452632. Its totient is φ = 82306510896.

The previous prime is 164805328433. The next prime is 164805328453. The reversal of 164805328438 is 834823508461.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164805328433) 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, 48074520 + ... + 48077947.

It is an arithmetic number, because the mean of its divisors is an integer number (30937056579).

Almost surely, 2^164805328438 is an apocalyptic number.

164805328438 is a deficient number, since it is larger than the sum of its proper divisors (82691124194).

164805328438 is an equidigital number, since it uses as much as digits as its factorization.

164805328438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96153326.

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 164805328438 in words is "one hundred sixty-four billion, eight hundred five million, three hundred twenty-eight thousand, four hundred thirty-eight".