1600162561 has 8 divisors (see below), whose sum is σ = 1620833760. Its totient is φ = 1579524672.

The previous prime is 1600162559. The next prime is 1600162573. The reversal of 1600162561 is 1652610061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1600162561 - 2¹ = 1600162559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1600169561) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 96841 + ... + 112153.

It is an arithmetic number, because the mean of its divisors is an integer number (202604220).

Almost surely, 2^1600162561 is an apocalyptic number.

It is an amenable number.

1600162561 is a deficient number, since it is larger than the sum of its proper divisors (20671199).

1600162561 is a wasteful number, since it uses less digits than its factorization.

1600162561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16655.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1600162561 is about 40002.0319608892. The cubic root of 1600162561 is about 1169.6467048810.

The spelling of 1600162561 in words is "one billion, six hundred million, one hundred sixty-two thousand, five hundred sixty-one".