2088641565 has 16 divisors (see below), whose sum is σ = 3713140800. Its totient is φ = 1113942096.

The previous prime is 2088641563. The next prime is 2088641593. The reversal of 2088641565 is 5651468802.

2088641565 is a `hidden beast` number, since 2 + 0 + 8 + 86 + 4 + 1 + 565 = 666.

It is not a de Polignac number, because 2088641565 - 2¹ = 2088641563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2088641565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2088641563) 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 15 ways as a sum of consecutive naturals, for example, 7735575 + ... + 7735844.

It is an arithmetic number, because the mean of its divisors is an integer number (232071300).

Almost surely, 2^2088641565 is an apocalyptic number.

It is an amenable number.

2088641565 is a deficient number, since it is larger than the sum of its proper divisors (1624499235).

2088641565 is a wasteful number, since it uses less digits than its factorization.

2088641565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15471433 (or 15471427 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 2088641565 is about 45701.6582303093. The cubic root of 2088641565 is about 1278.2662001412.

The spelling of 2088641565 in words is "two billion, eighty-eight million, six hundred forty-one thousand, five hundred sixty-five".