161332776366 has 8 divisors (see below), whose sum is σ = 322665552744. Its totient is φ = 53777592120.

The previous prime is 161332776313. The next prime is 161332776391. The reversal of 161332776366 is 663677233161.

161332776366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

161332776366 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13444398025 + ... + 13444398036.

It is an arithmetic number, because the mean of its divisors is an integer number (40333194093).

Almost surely, 2^161332776366 is an apocalyptic number.

161332776366 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161332776366 is a wasteful number, since it uses less digits than its factorization.

161332776366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26888796066.

The product of its digits is 3429216, while the sum is 51.

The spelling of 161332776366 in words is "one hundred sixty-one billion, three hundred thirty-two million, seven hundred seventy-six thousand, three hundred sixty-six".