1166550555101 has 16 divisors (see below), whose sum is σ = 1171994892480. Its totient is φ = 1161123223680.

The previous prime is 1166550555091. The next prime is 1166550555133. The reversal of 1166550555101 is 1015550556611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166550555101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166550555701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459451490 + ... + 459454028.

It is an arithmetic number, because the mean of its divisors is an integer number (73249680780).

Almost surely, 2^{1166550555101} is an apocalyptic number.

It is an amenable number.

1166550555101 is a deficient number, since it is larger than the sum of its proper divisors (5444337379).

1166550555101 is a wasteful number, since it uses less digits than its factorization.

1166550555101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5116.

The product of its (nonzero) digits is 112500, while the sum is 41.

The spelling of 1166550555101 in words is "one trillion, one hundred sixty-six billion, five hundred fifty million, five hundred fifty-five thousand, one hundred one".