6514666465 has 4 divisors (see below), whose sum is σ = 7817599764. Its totient is φ = 5211733168.

The previous prime is 6514666463. The next prime is 6514666469. The reversal of 6514666465 is 5646664156.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3641277649 + 2873388816 = 60343^2 + 53604^2 .

It is a cyclic number.

It is not a de Polignac number, because 6514666465 - 2¹ = 6514666463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6514666463) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 651466642 + ... + 651466651.

It is an arithmetic number, because the mean of its divisors is an integer number (1954399941).

Almost surely, 2^6514666465 is an apocalyptic number.

It is an amenable number.

6514666465 is a deficient number, since it is larger than the sum of its proper divisors (1302933299).

6514666465 is a wasteful number, since it uses less digits than its factorization.

6514666465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302933298.

The product of its digits is 3110400, while the sum is 49.

The square root of 6514666465 is about 80713.4837867874. The cubic root of 6514666465 is about 1867.6581841090.

The spelling of 6514666465 in words is "six billion, five hundred fourteen million, six hundred sixty-six thousand, four hundred sixty-five".