164170323776 has 56 divisors (see below), whose sum is σ = 336694369536. Its totient is φ = 79340405760.

The previous prime is 164170323743. The next prime is 164170323791. The reversal of 164170323776 is 677323071461.

It is a self number, because there is not a number n which added to its sum of digits gives 164170323776.

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, 1590740 + ... + 1690796.

It is an arithmetic number, because the mean of its divisors is an integer number (6012399456).

Almost surely, 2^164170323776 is an apocalyptic number.

164170323776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164170323776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168347184768).

164170323776 is an abundant number, since it is smaller than the sum of its proper divisors (172524045760).

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

164170323776 is a wasteful number, since it uses less digits than its factorization.

164170323776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100927 (or 100917 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 47.

The spelling of 164170323776 in words is "one hundred sixty-four billion, one hundred seventy million, three hundred twenty-three thousand, seven hundred seventy-six".