1116645566550 has 24 divisors (see below), whose sum is σ = 2769281005416. Its totient is φ = 297772151040.

The previous prime is 1116645566527. The next prime is 1116645566563. The reversal of 1116645566550 is 556655466111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1116645566493 and 1116645566502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3722151739 + ... + 3722152038.

It is an arithmetic number, because the mean of its divisors is an integer number (115386708559).

Almost surely, 2^{1116645566550} is an apocalyptic number.

1116645566550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1116645566550 is an abundant number, since it is smaller than the sum of its proper divisors (1652635438866).

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

1116645566550 is a wasteful number, since it uses less digits than its factorization.

1116645566550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7444303792 (or 7444303787 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 51.

The spelling of 1116645566550 in words is "one trillion, one hundred sixteen billion, six hundred forty-five million, five hundred sixty-six thousand, five hundred fifty".