164820128422318 has 16 divisors (see below), whose sum is σ = 248807108839680. Its totient is φ = 81884434765536.

The previous prime is 164820128422247. The next prime is 164820128422319. The reversal of 164820128422318 is 813224821028461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164820128422319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34129128 + ... + 38657956.

It is an arithmetic number, because the mean of its divisors is an integer number (15550444302480).

Almost surely, 2^{164820128422318} is an apocalyptic number.

164820128422318 is a deficient number, since it is larger than the sum of its proper divisors (83986980417362).

164820128422318 is a wasteful number, since it uses less digits than its factorization.

164820128422318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644891.

The product of its (nonzero) digits is 2359296, while the sum is 52.

The spelling of 164820128422318 in words is "one hundred sixty-four trillion, eight hundred twenty billion, one hundred twenty-eight million, four hundred twenty-two thousand, three hundred eighteen".