65253624665 has 16 divisors (see below), whose sum is σ = 80834485248. Its totient is φ = 50537630976.

The previous prime is 65253624641. The next prime is 65253624697. The reversal of 65253624665 is 56642635256.

It is a cyclic number.

It is not a de Polignac number, because 65253624665 - 2⁸ = 65253624409 is a prime.

It is a Duffinian number.

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, 1318649 + ... + 1367238.

It is an arithmetic number, because the mean of its divisors is an integer number (5052155328).

Almost surely, 2^65253624665 is an apocalyptic number.

It is an amenable number.

65253624665 is a deficient number, since it is larger than the sum of its proper divisors (15580860583).

65253624665 is a wasteful number, since it uses less digits than its factorization.

65253624665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686048.

The product of its digits is 7776000, while the sum is 50.

The spelling of 65253624665 in words is "sixty-five billion, two hundred fifty-three million, six hundred twenty-four thousand, six hundred sixty-five".