164199345534528 has 112 divisors (see below), whose sum is σ = 445066456519104. Its totient is φ = 53395022684160.

The previous prime is 164199345534481. The next prime is 164199345534551. The reversal of 164199345534528 is 825435543991461.

It is a happy number.

It is a super-2 number, since 2×164199345534528² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135242751 + ... + 136451457.

It is an arithmetic number, because the mean of its divisors is an integer number (3973807647492).

Almost surely, 2^{164199345534528} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164199345534528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222533228259552).

164199345534528 is an abundant number, since it is smaller than the sum of its proper divisors (280867110984576).

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

164199345534528 is a wasteful number, since it uses less digits than its factorization.

164199345534528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226020 (or 1226010 counting only the distinct ones).

The product of its digits is 559872000, while the sum is 69.

The spelling of 164199345534528 in words is "one hundred sixty-four trillion, one hundred ninety-nine billion, three hundred forty-five million, five hundred thirty-four thousand, five hundred twenty-eight".