1103398810556 has 12 divisors (see below), whose sum is σ = 2206797621168. Its totient is φ = 472885204512.

The previous prime is 1103398810523. The next prime is 1103398810583. The reversal of 1103398810556 is 6550188933011.

1103398810556 is an admirable number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 19703550161 + ... + 19703550216.

It is an arithmetic number, because the mean of its divisors is an integer number (183899801764).

Almost surely, 2^{1103398810556} is an apocalyptic number.

It is an amenable number.

1103398810556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1103398810556 is a wasteful number, since it uses less digits than its factorization.

1103398810556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39407100388 (or 39407100386 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 50.

The spelling of 1103398810556 in words is "one trillion, one hundred three billion, three hundred ninety-eight million, eight hundred ten thousand, five hundred fifty-six".