161741227377 has 8 divisors (see below), whose sum is σ = 215889636160. Its totient is φ = 107710151760.

The previous prime is 161741227369. The next prime is 161741227379. The reversal of 161741227377 is 773722147161.

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

It is not a de Polignac number, because 161741227377 - 2³ = 161741227369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161741227379) 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 7 ways as a sum of consecutive naturals, for example, 29330074 + ... + 29335587.

It is an arithmetic number, because the mean of its divisors is an integer number (26986204520).

Almost surely, 2^161741227377 is an apocalyptic number.

It is an amenable number.

161741227377 is a deficient number, since it is larger than the sum of its proper divisors (54148408783).

161741227377 is an equidigital number, since it uses as much as digits as its factorization.

161741227377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58666583.

The product of its digits is 691488, while the sum is 48.

The spelling of 161741227377 in words is "one hundred sixty-one billion, seven hundred forty-one million, two hundred twenty-seven thousand, three hundred seventy-seven".