1116665005061 has 4 divisors (see below), whose sum is σ = 1124815844652. Its totient is φ = 1108514165472.

The previous prime is 1116665005051. The next prime is 1116665005063. The reversal of 1116665005061 is 1605005666111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 776769009025 + 339895996036 = 881345^2 + 583006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1116665005061 is a prime.

It is a super-2 number, since 2×1116665005061² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116665005063) 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, 4075419590 + ... + 4075419863.

It is an arithmetic number, because the mean of its divisors is an integer number (281203961163).

Almost surely, 2^{1116665005061} is an apocalyptic number.

It is an amenable number.

1116665005061 is a deficient number, since it is larger than the sum of its proper divisors (8150839591).

1116665005061 is an equidigital number, since it uses as much as digits as its factorization.

1116665005061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8150839590.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 1116665005061 in words is "one trillion, one hundred sixteen billion, six hundred sixty-five million, five thousand, sixty-one".