6411532665 has 16 divisors (see below), whose sum is σ = 10259460288. Its totient is φ = 3419148096.

The previous prime is 6411532661. The next prime is 6411532681. The reversal of 6411532665 is 5662351146.

It is not a de Polignac number, because 6411532665 - 2² = 6411532661 is a prime.

It is a super-2 number, since 2×6411532665² = 82215502228724004450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6411532661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247414 + ... + 272096.

It is an arithmetic number, because the mean of its divisors is an integer number (641216268).

Almost surely, 2^6411532665 is an apocalyptic number.

It is an amenable number.

6411532665 is a deficient number, since it is larger than the sum of its proper divisors (3847927623).

6411532665 is a wasteful number, since it uses less digits than its factorization.

6411532665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42008.

The product of its digits is 129600, while the sum is 39.

The square root of 6411532665 is about 80072.0467141936. The cubic root of 6411532665 is about 1857.7500702783.

The spelling of 6411532665 in words is "six billion, four hundred eleven million, five hundred thirty-two thousand, six hundred sixty-five".