161713802592 has 144 divisors (see below), whose sum is σ = 497797256880. Its totient is φ = 51067418112.

The previous prime is 161713802531. The next prime is 161713802599. The reversal of 161713802592 is 295208317161.

161713802592 is a `hidden beast` number, since 1 + 6 + 17 + 1 + 380 + 259 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161713802599) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52668 + ... + 571140.

It is an arithmetic number, because the mean of its divisors is an integer number (3456925395).

Almost surely, 2^161713802592 is an apocalyptic number.

161713802592 is a gapful number since it is divisible by the number (12) 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 161713802592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248898628440).

161713802592 is an abundant number, since it is smaller than the sum of its proper divisors (336083454288).

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

161713802592 is a wasteful number, since it uses less digits than its factorization.

161713802592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518530 (or 518497 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 161713802592 in words is "one hundred sixty-one billion, seven hundred thirteen million, eight hundred two thousand, five hundred ninety-two".