1116665555051 has 4 divisors (see below), whose sum is σ = 1117857301512. Its totient is φ = 1115473808592.

The previous prime is 1116665555041. The next prime is 1116665555087. The reversal of 1116665555051 is 1505555666111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1116665555051 is a prime.

It is a super-2 number, since 2×1116665555051² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1116665554987 and 1116665555005.

It is not an unprimeable number, because it can be changed into a prime (1116665555041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595871825 + ... + 595873698.

It is an arithmetic number, because the mean of its divisors is an integer number (279464325378).

Almost surely, 2^{1116665555051} is an apocalyptic number.

1116665555051 is a deficient number, since it is larger than the sum of its proper divisors (1191746461).

1116665555051 is an equidigital number, since it uses as much as digits as its factorization.

1116665555051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191746460.

The product of its (nonzero) digits is 675000, while the sum is 47.

The spelling of 1116665555051 in words is "one trillion, one hundred sixteen billion, six hundred sixty-five million, five hundred fifty-five thousand, fifty-one".