2665504361 has 8 divisors (see below), whose sum is σ = 2871744960. Its totient is φ = 2459435472.

The previous prime is 2665504351. The next prime is 2665504367. The reversal of 2665504361 is 1634055662.

It is a happy number.

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

It is not a de Polignac number, because 2665504361 - 2⁶ = 2665504297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2665504367) 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 7 ways as a sum of consecutive naturals, for example, 9725 + ... + 73658.

It is an arithmetic number, because the mean of its divisors is an integer number (358968120).

Almost surely, 2^2665504361 is an apocalyptic number.

It is an amenable number.

2665504361 is a deficient number, since it is larger than the sum of its proper divisors (206240599).

2665504361 is a wasteful number, since it uses less digits than its factorization.

2665504361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85855.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 2665504361 is about 51628.5227466369. The cubic root of 2665504361 is about 1386.5210449878.

The spelling of 2665504361 in words is "two billion, six hundred sixty-five million, five hundred four thousand, three hundred sixty-one".