161441774760146 has 8 divisors (see below), whose sum is σ = 243056251300224. Its totient is φ = 80423024326740.

The previous prime is 161441774760143. The next prime is 161441774760169. The reversal of 161441774760146 is 641067477144161.

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

It is not an unprimeable number, because it can be changed into a prime (161441774760143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148931525990 + ... + 148931527073.

It is an arithmetic number, because the mean of its divisors is an integer number (30382031412528).

Almost surely, 2^{161441774760146} is an apocalyptic number.

161441774760146 is a deficient number, since it is larger than the sum of its proper divisors (81614476540078).

161441774760146 is a wasteful number, since it uses less digits than its factorization.

161441774760146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297863053336.

The product of its (nonzero) digits is 18966528, while the sum is 59.

The spelling of 161441774760146 in words is "one hundred sixty-one trillion, four hundred forty-one billion, seven hundred seventy-four million, seven hundred sixty thousand, one hundred forty-six".