6551417865 has 32 divisors (see below), whose sum is σ = 11192417280. Its totient is φ = 3264440256.

The previous prime is 6551417827. The next prime is 6551417941. The reversal of 6551417865 is 5687141556.

It is not a de Polignac number, because 6551417865 - 2⁶ = 6551417801 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205975 + ... + 235644.

It is an arithmetic number, because the mean of its divisors is an integer number (349763040).

Almost surely, 2^6551417865 is an apocalyptic number.

It is an amenable number.

6551417865 is a deficient number, since it is larger than the sum of its proper divisors (4640999415).

6551417865 is a wasteful number, since it uses less digits than its factorization.

6551417865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441693.

The product of its digits is 1008000, while the sum is 48.

The square root of 6551417865 is about 80940.8294064250. The cubic root of 6551417865 is about 1871.1636275293.

The spelling of 6551417865 in words is "six billion, five hundred fifty-one million, four hundred seventeen thousand, eight hundred sixty-five".