1166417405 has 32 divisors (see below), whose sum is σ = 1466978688. Its totient is φ = 889574400.

The previous prime is 1166417401. The next prime is 1166417407. The reversal of 1166417405 is 5047146611.

It is not a de Polignac number, because 1166417405 - 2² = 1166417401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166417401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2238545 + ... + 2239065.

It is an arithmetic number, because the mean of its divisors is an integer number (45843084).

Almost surely, 2^1166417405 is an apocalyptic number.

It is an amenable number.

1166417405 is a deficient number, since it is larger than the sum of its proper divisors (300561283).

1166417405 is a wasteful number, since it uses less digits than its factorization.

1166417405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1166417405 is about 34152.8535411025. The cubic root of 1166417405 is about 1052.6516215875.

The spelling of 1166417405 in words is "one billion, one hundred sixty-six million, four hundred seventeen thousand, four hundred five".