6416957585 has 8 divisors (see below), whose sum is σ = 7717501800. Its totient is φ = 5122130944.

The previous prime is 6416957551. The next prime is 6416957627. The reversal of 6416957585 is 5857596146.

It can be written as a sum of positive squares in 4 ways, for example, as 776346769 + 5640610816 = 27863^2 + 75104^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6416957585 - 2²⁰ = 6415909009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6416957585.

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, 1426922 + ... + 1431411.

It is an arithmetic number, because the mean of its divisors is an integer number (964687725).

Almost surely, 2^6416957585 is an apocalyptic number.

It is an amenable number.

6416957585 is a deficient number, since it is larger than the sum of its proper divisors (1300544215).

6416957585 is a wasteful number, since it uses less digits than its factorization.

6416957585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858787.

The product of its digits is 9072000, while the sum is 56.

The square root of 6416957585 is about 80105.9147941024. The cubic root of 6416957585 is about 1858.2738818189.

The spelling of 6416957585 in words is "six billion, four hundred sixteen million, nine hundred fifty-seven thousand, five hundred eighty-five".