161039832471 has 24 divisors (see below), whose sum is σ = 265879271424. Its totient is φ = 92010390480.

The previous prime is 161039832467. The next prime is 161039832497. The reversal of 161039832471 is 174238930161.

161039832471 is a `hidden beast` number, since 1 + 6 + 10 + 398 + 3 + 247 + 1 = 666.

It is not a de Polignac number, because 161039832471 - 2² = 161039832467 is a prime.

It is a super-3 number, since 3×161039832471³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161039832271) 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 23 ways as a sum of consecutive naturals, for example, 311226 + ... + 647256.

It is an arithmetic number, because the mean of its divisors is an integer number (11078302976).

Almost surely, 2^161039832471 is an apocalyptic number.

161039832471 is a deficient number, since it is larger than the sum of its proper divisors (104839438953).

161039832471 is a wasteful number, since it uses less digits than its factorization.

161039832471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343651 (or 343648 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 161039832471 in words is "one hundred sixty-one billion, thirty-nine million, eight hundred thirty-two thousand, four hundred seventy-one".