1101166100661 has 8 divisors (see below), whose sum is σ = 1601696146464. Its totient is φ = 667373394320.

The previous prime is 1101166100651. The next prime is 1101166100669. The reversal of 1101166100661 is 1660016611011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101166100661 - 2¹⁰ = 1101166099637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101166100669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16684334826 + ... + 16684334891.

It is an arithmetic number, because the mean of its divisors is an integer number (200212018308).

Almost surely, 2^{1101166100661} is an apocalyptic number.

1101166100661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1101166100661 is a deficient number, since it is larger than the sum of its proper divisors (500530045803).

1101166100661 is a wasteful number, since it uses less digits than its factorization.

1101166100661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33368669731.

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 1101166100661 in words is "one trillion, one hundred one billion, one hundred sixty-six million, one hundred thousand, six hundred sixty-one".