1289656053616 has 20 divisors (see below), whose sum is σ = 2855666976112. Its totient is φ = 552709737216.

The previous prime is 1289656053593. The next prime is 1289656053661. The reversal of 1289656053616 is 6163506569821.

It is a congruent number.

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, 5757392985 + ... + 5757393208.

Almost surely, 2^{1289656053616} is an apocalyptic number.

1289656053616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1289656053616 is an abundant number, since it is smaller than the sum of its proper divisors (1566010922496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1289656053616 is a wasteful number, since it uses less digits than its factorization.

1289656053616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11514786208 (or 11514786202 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 58.

The spelling of 1289656053616 in words is "one trillion, two hundred eighty-nine billion, six hundred fifty-six million, fifty-three thousand, six hundred sixteen".