161056576 has 28 divisors (see below), whose sum is σ = 320296032. Its totient is φ = 80352128.

The previous prime is 161056549. The next prime is 161056579. The reversal of 161056576 is 675650161.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161056579) by changing a digit.

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, 29691 + ... + 34693.

It is an arithmetic number, because the mean of its divisors is an integer number (11439144).

Almost surely, 2^161056576 is an apocalyptic number.

161056576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161056576 is a deficient number, since it is larger than the sum of its proper divisors (159239456).

161056576 is an equidigital number, since it uses as much as digits as its factorization.

161056576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5518 (or 5508 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 161056576 is about 12690.8067513456. The cubic root of 161056576 is about 544.0758977149.

The spelling of 161056576 in words is "one hundred sixty-one million, fifty-six thousand, five hundred seventy-six".