2659550065 has 16 divisors (see below), whose sum is σ = 3231239040. Its totient is φ = 2101179520.

The previous prime is 2659550063. The next prime is 2659550081. The reversal of 2659550065 is 5600559562.

It is not a de Polignac number, because 2659550065 - 2¹ = 2659550063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2659550063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418260 + ... + 424570.

It is an arithmetic number, because the mean of its divisors is an integer number (201952440).

Almost surely, 2^2659550065 is an apocalyptic number.

It is an amenable number.

2659550065 is a deficient number, since it is larger than the sum of its proper divisors (571688975).

2659550065 is an equidigital number, since it uses as much as digits as its factorization.

2659550065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7352.

The product of its (nonzero) digits is 405000, while the sum is 43.

The square root of 2659550065 is about 51570.8257157087. The cubic root of 2659550065 is about 1385.4878556966.

The spelling of 2659550065 in words is "two billion, six hundred fifty-nine million, five hundred fifty thousand, sixty-five".