1121155611616 has 24 divisors (see below), whose sum is σ = 2208308130000. Its totient is φ = 560315451648.

The previous prime is 1121155611571. The next prime is 1121155611617. The reversal of 1121155611616 is 6161165511211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121155611617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8129116 + ... + 8265883.

It is an arithmetic number, because the mean of its divisors is an integer number (92012838750).

Almost surely, 2^{1121155611616} is an apocalyptic number.

1121155611616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1121155611616 is a deficient number, since it is larger than the sum of its proper divisors (1087152518384).

1121155611616 is a wasteful number, since it uses less digits than its factorization.

1121155611616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16397146 (or 16397138 counting only the distinct ones).

The product of its digits is 10800, while the sum is 37.

The spelling of 1121155611616 in words is "one trillion, one hundred twenty-one billion, one hundred fifty-five million, six hundred eleven thousand, six hundred sixteen".