161336044 has 6 divisors (see below), whose sum is σ = 282338084. Its totient is φ = 80668020.

The previous prime is 161336029. The next prime is 161336051. The reversal of 161336044 is 440633161.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20167002 + ... + 20167009.

Almost surely, 2^161336044 is an apocalyptic number.

It is an amenable number.

161336044 is a deficient number, since it is larger than the sum of its proper divisors (121002040).

161336044 is a wasteful number, since it uses less digits than its factorization.

161336044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40334015 (or 40334013 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 161336044 is about 12701.8126265506. The cubic root of 161336044 is about 544.3904123280.

The spelling of 161336044 in words is "one hundred sixty-one million, three hundred thirty-six thousand, forty-four".