6525707665 has 8 divisors (see below), whose sum is σ = 7844761728. Its totient is φ = 5211291120.

The previous prime is 6525707659. The next prime is 6525707693. The reversal of 6525707665 is 5667075256.

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

It is not a de Polignac number, because 6525707665 - 2¹¹ = 6525705617 is a prime.

It is a Duffinian number.

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, 1156281 + ... + 1161910.

It is an arithmetic number, because the mean of its divisors is an integer number (980595216).

Almost surely, 2^6525707665 is an apocalyptic number.

It is an amenable number.

6525707665 is a deficient number, since it is larger than the sum of its proper divisors (1319054063).

6525707665 is a wasteful number, since it uses less digits than its factorization.

6525707665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318759.

The product of its (nonzero) digits is 2646000, while the sum is 49.

The square root of 6525707665 is about 80781.8523246403. The cubic root of 6525707665 is about 1868.7127046468.

The spelling of 6525707665 in words is "six billion, five hundred twenty-five million, seven hundred seven thousand, six hundred sixty-five".