1660523316112 has 20 divisors (see below), whose sum is σ = 3249118026396. Its totient is φ = 822041244800.

The previous prime is 1660523316059. The next prime is 1660523316113. The reversal of 1660523316112 is 2116133250661.

It can be written as a sum of positive squares in 2 ways, for example, as 1365756846336 + 294766469776 = 1168656^2 + 542924^2 .

It is not an unprimeable number, because it can be changed into a prime (1660523316113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513774163 + ... + 513777394.

Almost surely, 2^{1660523316112} is an apocalyptic number.

It is an amenable number.

1660523316112 is a deficient number, since it is larger than the sum of its proper divisors (1588594710284).

1660523316112 is a wasteful number, since it uses less digits than its factorization.

1660523316112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027551666 (or 1027551660 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

Adding to 1660523316112 its reverse (2116133250661), we get a palindrome (3776656566773).

The spelling of 1660523316112 in words is "one trillion, six hundred sixty billion, five hundred twenty-three million, three hundred sixteen thousand, one hundred twelve".