1660866061312 has 44 divisors (see below), whose sum is σ = 3320596007856. Its totient is φ = 830311516160.

The previous prime is 1660866061273. The next prime is 1660866061399. The reversal of 1660866061312 is 2131606680661.

It is a super-2 number, since 2×1660866061312² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7096887 + ... + 7327177.

Almost surely, 2^{1660866061312} is an apocalyptic number.

It is an amenable number.

1660866061312 is a deficient number, since it is larger than the sum of its proper divisors (1659729946544).

1660866061312 is an equidigital number, since it uses as much as digits as its factorization.

1660866061312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237354 (or 237336 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 1660866061312 in words is "one trillion, six hundred sixty billion, eight hundred sixty-six million, sixty-one thousand, three hundred twelve".