161846656 has 32 divisors (see below), whose sum is σ = 323442000. Its totient is φ = 80669184.

The previous prime is 161846611. The next prime is 161846689. The reversal of 161846656 is 656648161.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42861 + ... + 46483.

Almost surely, 2^161846656 is an apocalyptic number.

161846656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161846656 is a deficient number, since it is larger than the sum of its proper divisors (161595344).

161846656 is an equidigital number, since it uses as much as digits as its factorization.

161846656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986 (or 3974 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 161846656 is about 12721.8967139338. The cubic root of 161846656 is about 544.9641207477.

The spelling of 161846656 in words is "one hundred sixty-one million, eight hundred forty-six thousand, six hundred fifty-six".