1166154041166 has 32 divisors (see below), whose sum is σ = 2336621478048. Its totient is φ = 387999736320.

The previous prime is 1166154041159. The next prime is 1166154041167. The reversal of 1166154041166 is 6611404516611.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166154041167) 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, 7538736 + ... + 7691868.

It is an arithmetic number, because the mean of its divisors is an integer number (73019421189).

Almost surely, 2^{1166154041166} is an apocalyptic number.

1166154041166 is an abundant number, since it is smaller than the sum of its proper divisors (1170467436882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166154041166 is a wasteful number, since it uses less digits than its factorization.

1166154041166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155476.

The product of its (nonzero) digits is 103680, while the sum is 42.

Adding to 1166154041166 its reverse (6611404516611), we get a palindrome (7777558557777).

The spelling of 1166154041166 in words is "one trillion, one hundred sixty-six billion, one hundred fifty-four million, forty-one thousand, one hundred sixty-six".