161056128484200 has 384 divisors, whose sum is σ = 513080154518400. Its totient is φ = 41779861585920.

The previous prime is 161056128484061. The next prime is 161056128484201. The reversal of 161056128484200 is 2484821650161.

161056128484200 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161056128484200.

It is not an unprimeable number, because it can be changed into a prime (161056128484201) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1244775111 + ... + 1244904489.

It is an arithmetic number, because the mean of its divisors is an integer number (1336146235725).

Almost surely, 2^{161056128484200} is an apocalyptic number.

161056128484200 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 161056128484200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256540077259200).

161056128484200 is an abundant number, since it is smaller than the sum of its proper divisors (352024026034200).

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

161056128484200 is a wasteful number, since it uses less digits than its factorization.

161056128484200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129861 (or 129852 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 161056128484200 in words is "one hundred sixty-one trillion, fifty-six billion, one hundred twenty-eight million, four hundred eighty-four thousand, two hundred".