3648287665 has 16 divisors (see below), whose sum is σ = 4778839296. Its totient is φ = 2651689600.

The previous prime is 3648287633. The next prime is 3648287677. The reversal of 3648287665 is 5667828463.

It is not a de Polignac number, because 3648287665 - 2⁵ = 3648287633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75384 + ... + 113926.

It is an arithmetic number, because the mean of its divisors is an integer number (298677456).

Almost surely, 2^3648287665 is an apocalyptic number.

It is an amenable number.

3648287665 is a deficient number, since it is larger than the sum of its proper divisors (1130551631).

3648287665 is a wasteful number, since it uses less digits than its factorization.

3648287665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40280.

The product of its digits is 11612160, while the sum is 55.

The square root of 3648287665 is about 60401.0568202246. The cubic root of 3648287665 is about 1539.4409148638.

The spelling of 3648287665 in words is "three billion, six hundred forty-eight million, two hundred eighty-seven thousand, six hundred sixty-five".