1166055499 has 12 divisors (see below), whose sum is σ = 1375017384. Its totient is φ = 985781664.

The previous prime is 1166055437. The next prime is 1166055523. The reversal of 1166055499 is 9945506611.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1166055499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166055899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159417 + ... + 166570.

It is an arithmetic number, because the mean of its divisors is an integer number (114584782).

Almost surely, 2^1166055499 is an apocalyptic number.

1166055499 is a deficient number, since it is larger than the sum of its proper divisors (208961885).

1166055499 is an equidigital number, since it uses as much as digits as its factorization.

1166055499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326074 (or 326067 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 1166055499 is about 34147.5548026502. The cubic root of 1166055499 is about 1052.5427410834.

The spelling of 1166055499 in words is "one billion, one hundred sixty-six million, fifty-five thousand, four hundred ninety-nine".