1128631681560 has 64 divisors (see below), whose sum is σ = 3395326636800. Its totient is φ = 300130084736.

The previous prime is 1128631681519. The next prime is 1128631681577. The reversal of 1128631681560 is 651861368211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13056174 + ... + 13142333.

It is an arithmetic number, because the mean of its divisors is an integer number (53051978700).

Almost surely, 2^{1128631681560} is an apocalyptic number.

1128631681560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128631681560 is an abundant number, since it is smaller than the sum of its proper divisors (2266694955240).

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

1128631681560 is a wasteful number, since it uses less digits than its factorization.

1128631681560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26198880 (or 26198876 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 1128631681560 in words is "one trillion, one hundred twenty-eight billion, six hundred thirty-one million, six hundred eighty-one thousand, five hundred sixty".