161342315266 has 16 divisors (see below), whose sum is σ = 266628708288. Its totient is φ = 72611302000.

The previous prime is 161342315227. The next prime is 161342315273. The reversal of 161342315266 is 662513243161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36303430 + ... + 36307873.

It is an arithmetic number, because the mean of its divisors is an integer number (16664294268).

Almost surely, 2^161342315266 is an apocalyptic number.

161342315266 is a deficient number, since it is larger than the sum of its proper divisors (105286393022).

161342315266 is a wasteful number, since it uses less digits than its factorization.

161342315266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72611417.

The product of its digits is 155520, while the sum is 40.

The spelling of 161342315266 in words is "one hundred sixty-one billion, three hundred forty-two million, three hundred fifteen thousand, two hundred sixty-six".