7066556 has 48 divisors (see below), whose sum is σ = 15321600. Its totient is φ = 2783808.

The previous prime is 7066541. The next prime is 7066561. The reversal of 7066556 is 6556607.

It is a super-2 number, since 2×7066556² = 99872427402272, which contains 22 as substring.

It is a congruent number.

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, 19505 + ... + 19863.

It is an arithmetic number, because the mean of its divisors is an integer number (319200).

Almost surely, 2^7066556 is an apocalyptic number.

7066556 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7066556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7660800).

7066556 is an abundant number, since it is smaller than the sum of its proper divisors (8255044).

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

7066556 is a wasteful number, since it uses less digits than its factorization.

7066556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 7066556 is about 2658.2994564195. The cubic root of 7066556 is about 191.8974785422.

The spelling of 7066556 in words is "seven million, sixty-six thousand, five hundred fifty-six".