6646664024462 has 64 divisors (see below), whose sum is σ = 12442532622336. Its totient is φ = 2587025967360.

The previous prime is 6646664024401. The next prime is 6646664024477. The reversal of 6646664024462 is 2644204666466.

It is a junction number, because it is equal to n+sod(n) for n = 6646664024398 and 6646664024407.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 801088298 + ... + 801096594.

It is an arithmetic number, because the mean of its divisors is an integer number (194414572224).

Almost surely, 2^{6646664024462} is an apocalyptic number.

6646664024462 is a deficient number, since it is larger than the sum of its proper divisors (5795868597874).

6646664024462 is a wasteful number, since it uses less digits than its factorization.

6646664024462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12881.

The product of its (nonzero) digits is 47775744, while the sum is 56.

The spelling of 6646664024462 in words is "six trillion, six hundred forty-six billion, six hundred sixty-four million, twenty-four thousand, four hundred sixty-two".