161069230400 has 168 divisors, whose sum is σ = 429063204864. Its totient is φ = 59158886400.

The previous prime is 161069230369. The next prime is 161069230403. The reversal of 161069230400 is 4032960161.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161069230403) 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, 3952529 + ... + 3993071.

It is an arithmetic number, because the mean of its divisors is an integer number (2553947648).

Almost surely, 2^161069230400 is an apocalyptic number.

161069230400 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 161069230400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214531602432).

161069230400 is an abundant number, since it is smaller than the sum of its proper divisors (267993974464).

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

161069230400 is a wasteful number, since it uses less digits than its factorization.

161069230400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40769 (or 40754 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 161069230400 in words is "one hundred sixty-one billion, sixty-nine million, two hundred thirty thousand, four hundred".