2249478665 has 8 divisors (see below), whose sum is σ = 3084999360. Its totient is φ = 1542499632.

The previous prime is 2249478643. The next prime is 2249478689. The reversal of 2249478665 is 5668749422.

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 a de Polignac number, because none of the positive numbers 2^k-2249478665 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32135375 + ... + 32135444.

It is an arithmetic number, because the mean of its divisors is an integer number (385624920).

Almost surely, 2^2249478665 is an apocalyptic number.

It is an amenable number.

2249478665 is a deficient number, since it is larger than the sum of its proper divisors (835520695).

2249478665 is an equidigital number, since it uses as much as digits as its factorization.

2249478665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64270831.

The product of its digits is 5806080, while the sum is 53.

The square root of 2249478665 is about 47428.6692307511. The cubic root of 2249478665 is about 1310.2694830487.

The spelling of 2249478665 in words is "two billion, two hundred forty-nine million, four hundred seventy-eight thousand, six hundred sixty-five".