161383411200 has 720 divisors, whose sum is σ = 599269144320. Its totient is φ = 38239027200.

The previous prime is 161383411187. The next prime is 161383411207. The reversal of 161383411200 is 2114383161.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161383411207) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 218380431 + ... + 218381169.

It is an arithmetic number, because the mean of its divisors is an integer number (832318256).

Almost surely, 2^161383411200 is an apocalyptic number.

161383411200 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 161383411200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299634572160).

161383411200 is an abundant number, since it is smaller than the sum of its proper divisors (437885733120).

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

161383411200 is a wasteful number, since it uses less digits than its factorization.

161383411200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

Adding to 161383411200 its reverse (2114383161), we get a palindrome (163497794361).

The spelling of 161383411200 in words is "one hundred sixty-one billion, three hundred eighty-three million, four hundred eleven thousand, two hundred".