164508802238 has 16 divisors (see below), whose sum is σ = 271420988400. Its totient is φ = 74776727080.

The previous prime is 164508802181. The next prime is 164508802279. The reversal of 164508802238 is 832208805461.

It is a junction number, because it is equal to n+sod(n) for n = 164508802192 and 164508802201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30896813 + ... + 30902136.

It is an arithmetic number, because the mean of its divisors is an integer number (16963811775).

Almost surely, 2^164508802238 is an apocalyptic number.

164508802238 is a deficient number, since it is larger than the sum of its proper divisors (106912186162).

164508802238 is an equidigital number, since it uses as much as digits as its factorization.

164508802238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61798984 (or 61798962 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 164508802238 in words is "one hundred sixty-four billion, five hundred eight million, eight hundred two thousand, two hundred thirty-eight".