164685373044 has 48 divisors (see below), whose sum is σ = 386402558976. Its totient is φ = 54590070400.

The previous prime is 164685373033. The next prime is 164685373049. The reversal of 164685373044 is 440373586461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164685373049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8417914 + ... + 8437454.

It is an arithmetic number, because the mean of its divisors is an integer number (8050053312).

Almost surely, 2^164685373044 is an apocalyptic number.

It is an amenable number.

164685373044 is an abundant number, since it is smaller than the sum of its proper divisors (221717185932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164685373044 is a wasteful number, since it uses less digits than its factorization.

164685373044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23416 (or 23414 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 51.

The spelling of 164685373044 in words is "one hundred sixty-four billion, six hundred eighty-five million, three hundred seventy-three thousand, forty-four".