160987556 has 6 divisors (see below), whose sum is σ = 281728230. Its totient is φ = 80493776.

The previous prime is 160987537. The next prime is 160987573. The reversal of 160987556 is 655789061.

It can be written as a sum of positive squares in only one way, i.e., 151782400 + 9205156 = 12320^2 + 3034^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 160987556.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20123441 + ... + 20123448.

It is an arithmetic number, because the mean of its divisors is an integer number (46954705).

Almost surely, 2^160987556 is an apocalyptic number.

It is an amenable number.

160987556 is a deficient number, since it is larger than the sum of its proper divisors (120740674).

160987556 is a wasteful number, since it uses less digits than its factorization.

160987556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40246893 (or 40246891 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 160987556 is about 12688.0871686791. The cubic root of 160987556 is about 543.9981662640.

The spelling of 160987556 in words is "one hundred sixty million, nine hundred eighty-seven thousand, five hundred fifty-six".