2665407585 has 8 divisors (see below), whose sum is σ = 4264652160. Its totient is φ = 1421550704.

The previous prime is 2665407583. The next prime is 2665407593. The reversal of 2665407585 is 5857045662.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2665407585 - 2¹ = 2665407583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2665407583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88846905 + ... + 88846934.

It is an arithmetic number, because the mean of its divisors is an integer number (533081520).

Almost surely, 2^2665407585 is an apocalyptic number.

It is an amenable number.

2665407585 is a deficient number, since it is larger than the sum of its proper divisors (1599244575).

2665407585 is a wasteful number, since it uses less digits than its factorization.

2665407585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177693847.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The square root of 2665407585 is about 51627.5855042631. The cubic root of 2665407585 is about 1386.5042647258.

The spelling of 2665407585 in words is "two billion, six hundred sixty-five million, four hundred seven thousand, five hundred eighty-five".