161163360 has 72 divisors (see below), whose sum is σ = 549974880. Its totient is φ = 42976512.

The previous prime is 161163347. The next prime is 161163371. The reversal of 161163360 is 63361161.

It is a happy number.

161163360 is a `hidden beast` number, since 16 + 11 + 633 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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 11 ways as a sum of consecutive naturals, for example, 54520 + ... + 57399.

It is an arithmetic number, because the mean of its divisors is an integer number (7638540).

Almost surely, 2^161163360 is an apocalyptic number.

161163360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161163360 is an abundant number, since it is smaller than the sum of its proper divisors (388811520).

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

161163360 is a wasteful number, since it uses less digits than its factorization.

161163360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111940 (or 111929 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 161163360 is about 12695.0131941641. The cubic root of 161163360 is about 544.1961158532.

The spelling of 161163360 in words is "one hundred sixty-one million, one hundred sixty-three thousand, three hundred sixty".