161368792200 has 1152 divisors, whose sum is σ = 703417478400. Its totient is φ = 32182272000.

The previous prime is 161368792199. The next prime is 161368792243. The reversal of 161368792200 is 2297863161.

161368792200 is a `hidden beast` number, since 1 + 61 + 368 + 7 + 9 + 220 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 414829606 + ... + 414829994.

It is an arithmetic number, because the mean of its divisors is an integer number (610605450).

Almost surely, 2^161368792200 is an apocalyptic number.

161368792200 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 161368792200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351708739200).

161368792200 is an abundant number, since it is smaller than the sum of its proper divisors (542048686200).

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

161368792200 is a wasteful number, since it uses less digits than its factorization.

161368792200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 161368792200 in words is "one hundred sixty-one billion, three hundred sixty-eight million, seven hundred ninety-two thousand, two hundred".