161844822760 has 64 divisors (see below), whose sum is σ = 365212224000. Its totient is φ = 64549529856.

The previous prime is 161844822757. The next prime is 161844822761. The reversal of 161844822760 is 67228448161.

It is a happy number.

161844822760 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×161844822760⁴ (a number of 46 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (161844822761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21435466 + ... + 21443014.

It is an arithmetic number, because the mean of its divisors is an integer number (5706441000).

Almost surely, 2^161844822760 is an apocalyptic number.

161844822760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161844822760 is an abundant number, since it is smaller than the sum of its proper divisors (203367401240).

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

161844822760 is a wasteful number, since it uses less digits than its factorization.

161844822760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9050 (or 9046 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

The spelling of 161844822760 in words is "one hundred sixty-one billion, eight hundred forty-four million, eight hundred twenty-two thousand, seven hundred sixty".