6656645465 has 8 divisors (see below), whose sum is σ = 8089088640. Its totient is φ = 5257906992.

The previous prime is 6656645431. The next prime is 6656645473. The reversal of 6656645465 is 5645466566.

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

It is a cyclic number.

It is not a de Polignac number, because 6656645465 - 2⁸ = 6656645209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8425739 + ... + 8426528.

It is an arithmetic number, because the mean of its divisors is an integer number (1011136080).

Almost surely, 2^6656645465 is an apocalyptic number.

It is an amenable number.

6656645465 is a deficient number, since it is larger than the sum of its proper divisors (1432443175).

6656645465 is a wasteful number, since it uses less digits than its factorization.

6656645465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16852351.

The product of its digits is 15552000, while the sum is 53.

The square root of 6656645465 is about 81588.2679372470. The cubic root of 6656645465 is about 1881.1285536697.

The spelling of 6656645465 in words is "six billion, six hundred fifty-six million, six hundred forty-five thousand, four hundred sixty-five".