161344856 has 16 divisors (see below), whose sum is σ = 303123600. Its totient is φ = 80511904.

The previous prime is 161344847. The next prime is 161344867. The reversal of 161344856 is 658443161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15740 + ... + 23883.

It is an arithmetic number, because the mean of its divisors is an integer number (18945225).

Almost surely, 2^161344856 is an apocalyptic number.

It is an amenable number.

161344856 is a deficient number, since it is larger than the sum of its proper divisors (141778744).

161344856 is a wasteful number, since it uses less digits than its factorization.

161344856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40138 (or 40134 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 161344856 is about 12702.1595014391. The cubic root of 161344856 is about 544.4003234859.

The spelling of 161344856 in words is "one hundred sixty-one million, three hundred forty-four thousand, eight hundred fifty-six".