1159661868880 has 40 divisors (see below), whose sum is σ = 2703983978592. Its totient is φ = 462527950464.

The previous prime is 1159661868863. The next prime is 1159661868941. The reversal of 1159661868880 is 888681669511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20859522 + ... + 20915041.

Almost surely, 2^{1159661868880} is an apocalyptic number.

1159661868880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1159661868880 is an abundant number, since it is smaller than the sum of its proper divisors (1544322109712).

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

1159661868880 is a wasteful number, since it uses less digits than its factorization.

1159661868880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41774923 (or 41774917 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 67.

The spelling of 1159661868880 in words is "one trillion, one hundred fifty-nine billion, six hundred sixty-one million, eight hundred sixty-eight thousand, eight hundred eighty".