6465659557 has 8 divisors (see below), whose sum is σ = 7399276416. Its totient is φ = 5534530512.

The previous prime is 6465659483. The next prime is 6465659561. The reversal of 6465659557 is 7559565646.

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

It is not a de Polignac number, because 6465659557 - 2¹¹ = 6465657509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6465659357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616378 + ... + 626779.

It is an arithmetic number, because the mean of its divisors is an integer number (924909552).

Almost surely, 2^6465659557 is an apocalyptic number.

It is an amenable number.

6465659557 is a deficient number, since it is larger than the sum of its proper divisors (933616859).

6465659557 is a wasteful number, since it uses less digits than its factorization.

6465659557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243907.

The product of its digits is 34020000, while the sum is 58.

The square root of 6465659557 is about 80409.3250624578. The cubic root of 6465659557 is about 1862.9632072349.

The spelling of 6465659557 in words is "six billion, four hundred sixty-five million, six hundred fifty-nine thousand, five hundred fifty-seven".