1160221605 has 16 divisors (see below), whose sum is σ = 1954057920. Its totient is φ = 586217088.

The previous prime is 1160221577. The next prime is 1160221739. The reversal of 1160221605 is 5061220611.

It is not a de Polignac number, because 1160221605 - 2⁹ = 1160221093 is a prime.

It is a super-2 number, since 2×1160221605² = 2692228345417552050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2035192 + ... + 2035761.

It is an arithmetic number, because the mean of its divisors is an integer number (122128620).

Almost surely, 2^1160221605 is an apocalyptic number.

1160221605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1160221605 is a deficient number, since it is larger than the sum of its proper divisors (793836315).

1160221605 is a wasteful number, since it uses less digits than its factorization.

1160221605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070980.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1160221605 is about 34062.0258499109. The cubic root of 1160221605 is about 1050.7844795107.

The spelling of 1160221605 in words is "one billion, one hundred sixty million, two hundred twenty-one thousand, six hundred five".