161365846 has 8 divisors (see below), whose sum is σ = 242129160. Its totient is φ = 80656128.

The previous prime is 161365817. The next prime is 161365847. The reversal of 161365846 is 648563161.

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

It is a super-3 number, since 3×161365846³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161365799 and 161365808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161365847) 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 3 ways as a sum of consecutive naturals, for example, 4756 + ... + 18583.

It is an arithmetic number, because the mean of its divisors is an integer number (30266145).

Almost surely, 2^161365846 is an apocalyptic number.

161365846 is a deficient number, since it is larger than the sum of its proper divisors (80763314).

161365846 is a wasteful number, since it uses less digits than its factorization.

161365846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26798.

The product of its digits is 103680, while the sum is 40.

The square root of 161365846 is about 12702.9857120285. The cubic root of 161365846 is about 544.4239302033.

The spelling of 161365846 in words is "one hundred sixty-one million, three hundred sixty-five thousand, eight hundred forty-six".