6666464 has 24 divisors (see below), whose sum is σ = 15000048. Its totient is φ = 2856960.

The previous prime is 6666449. The next prime is 6666467. The reversal of 6666464 is 4646666.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14657 + ... + 15104.

It is an arithmetic number, because the mean of its divisors is an integer number (625002).

Almost surely, 2^6666464 is an apocalyptic number.

It is an amenable number.

6666464 is an abundant number, since it is smaller than the sum of its proper divisors (8333584).

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

6666464 is a wasteful number, since it uses less digits than its factorization.

6666464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29778 (or 29770 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The square root of 6666464 is about 2581.9496509421. The cubic root of 6666464 is about 188.2052985905.

The spelling of 6666464 in words is "six million, six hundred sixty-six thousand, four hundred sixty-four".