161793079471 has 16 divisors (see below), whose sum is σ = 164567682720. Its totient is φ = 159047539200.

The previous prime is 161793079451. The next prime is 161793079493. The reversal of 161793079471 is 174970397161.

It is a cyclic number.

It is not a de Polignac number, because 161793079471 - 2¹⁷ = 161792948399 is a prime.

It is a super-3 number, since 3×161793079471³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161793079451) 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 15 ways as a sum of consecutive naturals, for example, 7549371 + ... + 7570771.

It is an arithmetic number, because the mean of its divisors is an integer number (10285480170).

Almost surely, 2^161793079471 is an apocalyptic number.

161793079471 is a deficient number, since it is larger than the sum of its proper divisors (2774603249).

161793079471 is a wasteful number, since it uses less digits than its factorization.

161793079471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22074.

The product of its (nonzero) digits is 2000376, while the sum is 55.

The spelling of 161793079471 in words is "one hundred sixty-one billion, seven hundred ninety-three million, seventy-nine thousand, four hundred seventy-one".