6666612 has 24 divisors (see below), whose sum is σ = 16058112. Its totient is φ = 2150400.

The previous prime is 6666599. The next prime is 6666613. The reversal of 6666612 is 2166666.

6666612 = 24² + 25² + ... + 271².

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666613) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8589 + ... + 9332.

It is an arithmetic number, because the mean of its divisors is an integer number (669088).

Almost surely, 2^6666612 is an apocalyptic number.

6666612 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6666612 is an abundant number, since it is smaller than the sum of its proper divisors (9391500).

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

6666612 is a wasteful number, since it uses less digits than its factorization.

6666612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17959 (or 17957 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 6666612 is about 2581.9783112954. The cubic root of 6666612 is about 188.2066913418.

The spelling of 6666612 in words is "six million, six hundred sixty-six thousand, six hundred twelve".