164370566240 has 192 divisors, whose sum is σ = 408396764160. Its totient is φ = 62433853440.

The previous prime is 164370566237. The next prime is 164370566251. The reversal of 164370566240 is 42665073461.

It is a junction number, because it is equal to n+sod(n) for n = 164370566191 and 164370566200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77862785 + ... + 77864895.

It is an arithmetic number, because the mean of its divisors is an integer number (2127066480).

Almost surely, 2^164370566240 is an apocalyptic number.

164370566240 is a gapful number since it is divisible by the number (10) 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 164370566240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204198382080).

164370566240 is an abundant number, since it is smaller than the sum of its proper divisors (244026197920).

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

164370566240 is a wasteful number, since it uses less digits than its factorization.

164370566240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425 (or 2417 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 164370566240 in words is "one hundred sixty-four billion, three hundred seventy million, five hundred sixty-six thousand, two hundred forty".