161444301473 has 32 divisors (see below), whose sum is σ = 202469541120. Its totient is φ = 125323925760.

The previous prime is 161444301461. The next prime is 161444301479. The reversal of 161444301473 is 374103444161.

It is a cyclic number.

It is not a de Polignac number, because 161444301473 - 2⁴ = 161444301457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161444301479) 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 31 ways as a sum of consecutive naturals, for example, 2167118 + ... + 2240376.

It is an arithmetic number, because the mean of its divisors is an integer number (6327173160).

Almost surely, 2^161444301473 is an apocalyptic number.

161444301473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

161444301473 is a deficient number, since it is larger than the sum of its proper divisors (41025239647).

161444301473 is a wasteful number, since it uses less digits than its factorization.

161444301473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73737.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 161444301473 in words is "one hundred sixty-one billion, four hundred forty-four million, three hundred one thousand, four hundred seventy-three".