161341050697 has 8 divisors (see below), whose sum is σ = 172592854056. Its totient is φ = 150284931072.

The previous prime is 161341050679. The next prime is 161341050701. The reversal of 161341050697 is 796050143161.

It can be written as a sum of positive squares in 4 ways, for example, as 58959609856 + 102381440841 = 242816^2 + 319971^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 161341050697 - 2⁷ = 161341050569 is a prime.

It is a super-3 number, since 3×161341050697³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161341020697) 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, 48919228 + ... + 48922525.

It is an arithmetic number, because the mean of its divisors is an integer number (21574106757).

Almost surely, 2^161341050697 is an apocalyptic number.

161341050697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

161341050697 is a deficient number, since it is larger than the sum of its proper divisors (11251803359).

161341050697 is an equidigital number, since it uses as much as digits as its factorization.

161341050697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97841867.

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 161341050697 in words is "one hundred sixty-one billion, three hundred forty-one million, fifty thousand, six hundred ninety-seven".