1115666107101 has 24 divisors (see below), whose sum is σ = 1983406414080. Its totient is φ = 588483220896.

The previous prime is 1115666107063. The next prime is 1115666107111. The reversal of 1115666107101 is 1017016665111.

It is a happy number.

It is not a de Polignac number, because 1115666107101 - 2¹⁵ = 1115666074333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115666107111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 681114021 + ... + 681115658.

It is an arithmetic number, because the mean of its divisors is an integer number (82641933920).

Almost surely, 2^{1115666107101} is an apocalyptic number.

It is an amenable number.

1115666107101 is a deficient number, since it is larger than the sum of its proper divisors (867740306979).

1115666107101 is a wasteful number, since it uses less digits than its factorization.

1115666107101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362229705 (or 1362229702 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 36.

The spelling of 1115666107101 in words is "one trillion, one hundred fifteen billion, six hundred sixty-six million, one hundred seven thousand, one hundred one".