165729469528 has 96 divisors (see below), whose sum is σ = 365998932000. Its totient is φ = 70324978752.

The previous prime is 165729469513. The next prime is 165729469583. The reversal of 165729469528 is 825964927561.

It is a self number, because there is not a number n which added to its sum of digits gives 165729469528.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 29108250 + ... + 29113942.

It is an arithmetic number, because the mean of its divisors is an integer number (3812488875).

Almost surely, 2^165729469528 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 165729469528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182999466000).

165729469528 is an abundant number, since it is smaller than the sum of its proper divisors (200269462472).

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

165729469528 is an equidigital number, since it uses as much as digits as its factorization.

165729469528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5926 (or 5805 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 64.

The spelling of 165729469528 in words is "one hundred sixty-five billion, seven hundred twenty-nine million, four hundred sixty-nine thousand, five hundred twenty-eight".