160561664 has 20 divisors (see below), whose sum is σ = 320810754. Its totient is φ = 80280576.

The previous prime is 160561663. The next prime is 160561669. The reversal of 160561664 is 466165061.

It can be written as a sum of positive squares in only one way, i.e., 153760000 + 6801664 = 12400^2 + 2608^2 .

It is not an unprimeable number, because it can be changed into a prime (160561663) by changing a digit.

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 as a sum of consecutive naturals, namely, 156287 + ... + 157310.

Almost surely, 2^160561664 is an apocalyptic number.

It is an amenable number.

160561664 is a deficient number, since it is larger than the sum of its proper divisors (160249090).

160561664 is an frugal number, since it uses more digits than its factorization.

160561664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313615 (or 313599 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 160561664 is about 12671.2929095653. The cubic root of 160561664 is about 543.5180275494.

The spelling of 160561664 in words is "one hundred sixty million, five hundred sixty-one thousand, six hundred sixty-four".