1116661005655 has 16 divisors (see below), whose sum is σ = 1456556248224. Its totient is φ = 816904552320.

The previous prime is 1116661005643. The next prime is 1116661005689. The reversal of 1116661005655 is 5565001666111.

It is a de Polignac number, because none of the positive numbers 2^k-1116661005655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80270616 + ... + 80284525.

It is an arithmetic number, because the mean of its divisors is an integer number (91034765514).

Almost surely, 2^{1116661005655} is an apocalyptic number.

1116661005655 is a deficient number, since it is larger than the sum of its proper divisors (339895242569).

1116661005655 is a wasteful number, since it uses less digits than its factorization.

1116661005655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160555266.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 1116661005655 in words is "one trillion, one hundred sixteen billion, six hundred sixty-one million, five thousand, six hundred fifty-five".