1596661266641 has 12 divisors (see below), whose sum is σ = 1857369985380. Its totient is φ = 1368545189760.

The previous prime is 1596661266601. The next prime is 1596661266647. The reversal of 1596661266641 is 1466621666951.

It can be written as a sum of positive squares in 2 ways, for example, as 1212421210000 + 384240056641 = 1101100^2 + 619871^2 .

It is not a de Polignac number, because 1596661266641 - 2³⁴ = 1579481397457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1596661266647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3403805 + ... + 3844373.

It is an arithmetic number, because the mean of its divisors is an integer number (154780832115).

Almost surely, 2^{1596661266641} is an apocalyptic number.

It is an amenable number.

1596661266641 is a deficient number, since it is larger than the sum of its proper divisors (260708718739).

1596661266641 is an equidigital number, since it uses as much as digits as its factorization.

1596661266641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514544 (or 514537 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 59.

The spelling of 1596661266641 in words is "one trillion, five hundred ninety-six billion, six hundred sixty-one million, two hundred sixty-six thousand, six hundred forty-one".