1166106006505 has 32 divisors (see below), whose sum is σ = 1528838277120. Its totient is φ = 846800593920.

The previous prime is 1166106006503. The next prime is 1166106006589. The reversal of 1166106006505 is 5056006016611.

It is not a de Polignac number, because 1166106006505 - 2¹ = 1166106006503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1166106006503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124886197 + ... + 124895533.

It is an arithmetic number, because the mean of its divisors is an integer number (47776196160).

Almost surely, 2^{1166106006505} is an apocalyptic number.

It is an amenable number.

1166106006505 is a deficient number, since it is larger than the sum of its proper divisors (362732270615).

1166106006505 is a wasteful number, since it uses less digits than its factorization.

1166106006505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12529.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 1166106006505 in words is "one trillion, one hundred sixty-six billion, one hundred six million, six thousand, five hundred five".