1162885665 has 32 divisors (see below), whose sum is σ = 1911361536. Its totient is φ = 603376640.

The previous prime is 1162885637. The next prime is 1162885699. The reversal of 1162885665 is 5665882611.

It is not a de Polignac number, because 1162885665 - 2²¹ = 1160788513 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 233077 + ... + 238013.

It is an arithmetic number, because the mean of its divisors is an integer number (59730048).

Almost surely, 2^1162885665 is an apocalyptic number.

1162885665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1162885665 is a deficient number, since it is larger than the sum of its proper divisors (748475871).

1162885665 is a wasteful number, since it uses less digits than its factorization.

1162885665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5369.

The product of its digits is 691200, while the sum is 48.

The square root of 1162885665 is about 34101.1094394303. The cubic root of 1162885665 is about 1051.5881228336.

The spelling of 1162885665 in words is "one billion, one hundred sixty-two million, eight hundred eighty-five thousand, six hundred sixty-five".