6660424464 has 80 divisors (see below), whose sum is σ = 18601279680. Its totient is φ = 2046435840.

The previous prime is 6660424453. The next prime is 6660424471. The reversal of 6660424464 is 4644240666.

It is a super-2 number, since 2×6660424464² = 88722508081299374592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64947 + ... + 132434.

It is an arithmetic number, because the mean of its divisors is an integer number (232515996).

Almost surely, 2^6660424464 is an apocalyptic number.

It is an amenable number.

6660424464 is an abundant number, since it is smaller than the sum of its proper divisors (11940855216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6660424464 is a wasteful number, since it uses less digits than its factorization.

6660424464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197448 (or 197442 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The square root of 6660424464 is about 81611.4236121390. The cubic root of 6660424464 is about 1881.4844605679.

The spelling of 6660424464 in words is "six billion, six hundred sixty million, four hundred twenty-four thousand, four hundred sixty-four".