165319334430 has 128 divisors (see below), whose sum is σ = 408046657536. Its totient is φ = 42851625600.

The previous prime is 165319334423. The next prime is 165319334459. The reversal of 165319334430 is 34433913561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 160348015 + ... + 160349045.

It is an arithmetic number, because the mean of its divisors is an integer number (3187864512).

Almost surely, 2^165319334430 is an apocalyptic number.

165319334430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 165319334430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204023328768).

165319334430 is an abundant number, since it is smaller than the sum of its proper divisors (242727323106).

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

165319334430 is a wasteful number, since it uses less digits than its factorization.

165319334430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102.

The product of its (nonzero) digits is 349920, while the sum is 42.

The spelling of 165319334430 in words is "one hundred sixty-five billion, three hundred nineteen million, three hundred thirty-four thousand, four hundred thirty".