161576080 has 40 divisors (see below), whose sum is σ = 384834744. Its totient is φ = 63052800.

The previous prime is 161576059. The next prime is 161576087. The reversal of 161576080 is 80675161.

It can be written as a sum of positive squares in 4 ways, for example, as 692224 + 160883856 = 832^2 + 12684^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×161576080² = 52213659256332800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (161576087) 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 7 ways as a sum of consecutive naturals, for example, 21351 + ... + 27910.

Almost surely, 2^161576080 is an apocalyptic number.

161576080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161576080 is an abundant number, since it is smaller than the sum of its proper divisors (223258664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161576080 is a wasteful number, since it uses less digits than its factorization.

161576080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49315 (or 49309 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 161576080 is about 12711.2580022593. The cubic root of 161576080 is about 544.6602601603.

The spelling of 161576080 in words is "one hundred sixty-one million, five hundred seventy-six thousand, eighty".