6414561665 has 8 divisors (see below), whose sum is σ = 7698414528. Its totient is φ = 5131022320.

The previous prime is 6414561653. The next prime is 6414561677. The reversal of 6414561665 is 5661654146.

It is an interprime number because it is at equal distance from previous prime (6414561653) and next prime (6414561677).

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

It is not a de Polignac number, because 6414561665 - 2¹⁶ = 6414496129 is a prime.

It is a super-2 number, since 2×6414561665² = 82293202708175144450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30731 + ... + 117360.

It is an arithmetic number, because the mean of its divisors is an integer number (962301816).

Almost surely, 2^6414561665 is an apocalyptic number.

It is an amenable number.

6414561665 is a deficient number, since it is larger than the sum of its proper divisors (1283852863).

6414561665 is a wasteful number, since it uses less digits than its factorization.

6414561665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156759.

The product of its digits is 518400, while the sum is 44.

The square root of 6414561665 is about 80090.9586969715. The cubic root of 6414561665 is about 1858.0425764724.

The spelling of 6414561665 in words is "six billion, four hundred fourteen million, five hundred sixty-one thousand, six hundred sixty-five".