1061606505 has 16 divisors (see below), whose sum is σ = 1700559360. Its totient is φ = 565527168.

The previous prime is 1061606471. The next prime is 1061606519. The reversal of 1061606505 is 5056061601.

It is not a de Polignac number, because 1061606505 - 2²⁰ = 1060557929 is a prime.

It is a super-2 number, since 2×1061606505² = 2254016742916630050, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28060 + ... + 53949.

It is an arithmetic number, because the mean of its divisors is an integer number (106284960).

Almost surely, 2^1061606505 is an apocalyptic number.

1061606505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1061606505 is a deficient number, since it is larger than the sum of its proper divisors (638952855).

1061606505 is an equidigital number, since it uses as much as digits as its factorization.

1061606505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82880.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1061606505 is about 32582.3035557647. The cubic root of 1061606505 is about 1020.1276608766.

The spelling of 1061606505 in words is "one billion, sixty-one million, six hundred six thousand, five hundred five".