1121665433416 has 64 divisors (see below), whose sum is σ = 2330325365760. Its totient is φ = 501868584000.

The previous prime is 1121665433363. The next prime is 1121665433417. The reversal of 1121665433416 is 6143345661211.

It is not an unprimeable number, because it can be changed into a prime (1121665433417) 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 15 ways as a sum of consecutive naturals, for example, 3800235 + ... + 4084741.

It is an arithmetic number, because the mean of its divisors is an integer number (36411333840).

Almost surely, 2^{1121665433416} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121665433416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1165162682880).

1121665433416 is an abundant number, since it is smaller than the sum of its proper divisors (1208659932344).

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

1121665433416 is a wasteful number, since it uses less digits than its factorization.

1121665433416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285226 (or 285222 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The spelling of 1121665433416 in words is "one trillion, one hundred twenty-one billion, six hundred sixty-five million, four hundred thirty-three thousand, four hundred sixteen".