1166432045655 has 16 divisors (see below), whose sum is σ = 1866509936640. Its totient is φ = 622024203168.

The previous prime is 1166432045609. The next prime is 1166432045693. The reversal of 1166432045655 is 5565402346611.

It is a happy number.

It is not a de Polignac number, because 1166432045655 - 2⁶ = 1166432045591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4423075 + ... + 4679364.

It is an arithmetic number, because the mean of its divisors is an integer number (116656871040).

Almost surely, 2^{1166432045655} is an apocalyptic number.

1166432045655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1166432045655 is a deficient number, since it is larger than the sum of its proper divisors (700077890985).

1166432045655 is an equidigital number, since it uses as much as digits as its factorization.

1166432045655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110990.

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 1166432045655 in words is "one trillion, one hundred sixty-six billion, four hundred thirty-two million, forty-five thousand, six hundred fifty-five".