161073407645 has 16 divisors (see below), whose sum is σ = 194819884992. Its totient is φ = 127840343040.

The previous prime is 161073407639. The next prime is 161073407653. The reversal of 161073407645 is 546704370161.

It is not a de Polignac number, because 161073407645 - 2¹⁰ = 161073406621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161073407596 and 161073407605.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 283325 + ... + 634365.

It is an arithmetic number, because the mean of its divisors is an integer number (12176242812).

Almost surely, 2^161073407645 is an apocalyptic number.

It is an amenable number.

161073407645 is a deficient number, since it is larger than the sum of its proper divisors (33746477347).

161073407645 is a wasteful number, since it uses less digits than its factorization.

161073407645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351772.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 161073407645 in words is "one hundred sixty-one billion, seventy-three million, four hundred seven thousand, six hundred forty-five".