1600561662068 has 24 divisors (see below), whose sum is σ = 2966184824904. Its totient is φ = 753094195200.

The previous prime is 1600561662061. The next prime is 1600561662097. The reversal of 1600561662068 is 8602661650061.

It can be written as a sum of positive squares in 4 ways, for example, as 284076208144 + 1316485453924 = 532988^2 + 1147382^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600561662061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274453 + ... + 2196668.

It is an arithmetic number, because the mean of its divisors is an integer number (123591034371).

Almost surely, 2^{1600561662068} is an apocalyptic number.

It is an amenable number.

1600561662068 is a deficient number, since it is larger than the sum of its proper divisors (1365623162836).

1600561662068 is a wasteful number, since it uses less digits than its factorization.

1600561662068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3477923 (or 3477921 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 1600561662068 in words is "one trillion, six hundred billion, five hundred sixty-one million, six hundred sixty-two thousand, sixty-eight".