6644701465 has 16 divisors (see below), whose sum is σ = 8031600000. Its totient is φ = 5277238272.

The previous prime is 6644701457. The next prime is 6644701477. The reversal of 6644701465 is 5641074466.

It is a cyclic number.

It is not a de Polignac number, because 6644701465 - 2³ = 6644701457 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474636 + ... + 488434.

It is an arithmetic number, because the mean of its divisors is an integer number (501975000).

Almost surely, 2^6644701465 is an apocalyptic number.

It is an amenable number.

6644701465 is a deficient number, since it is larger than the sum of its proper divisors (1386898535).

6644701465 is a wasteful number, since it uses less digits than its factorization.

6644701465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14496.

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 6644701465 is about 81515.0382751551. The cubic root of 6644701465 is about 1880.0027788740.

The spelling of 6644701465 in words is "six billion, six hundred forty-four million, seven hundred one thousand, four hundred sixty-five".