161120336 has 40 divisors (see below), whose sum is σ = 350810880. Its totient is φ = 71127936.

The previous prime is 161120329. The next prime is 161120353. The reversal of 161120336 is 633021161.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12056 + ... + 21623.

It is an arithmetic number, because the mean of its divisors is an integer number (8770272).

Almost surely, 2^161120336 is an apocalyptic number.

161120336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161120336 is an abundant number, since it is smaller than the sum of its proper divisors (189690544).

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

161120336 is a wasteful number, since it uses less digits than its factorization.

161120336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33723 (or 33717 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 161120336 is about 12693.3185574144. The cubic root of 161120336 is about 544.1476855370.

Adding to 161120336 its reverse (633021161), we get a palindrome (794141497).

The spelling of 161120336 in words is "one hundred sixty-one million, one hundred twenty thousand, three hundred thirty-six".