6566736 has 40 divisors (see below), whose sum is σ = 18507744. Its totient is φ = 1989760.

The previous prime is 6566713. The next prime is 6566741. The reversal of 6566736 is 6376656.

It is a junction number, because it is equal to n+sod(n) for n = 6566694 and 6566703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5691 + ... + 6746.

Almost surely, 2^6566736 is an apocalyptic number.

6566736 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6566736 is an abundant number, since it is smaller than the sum of its proper divisors (11941008).

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

6566736 is a wasteful number, since it uses less digits than its factorization.

6566736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12459 (or 12453 counting only the distinct ones).

The product of its digits is 136080, while the sum is 39.

The square root of 6566736 is about 2562.5643406557. The cubic root of 6566736 is about 187.2620840174.

It can be divided in two parts, 65667 and 36, that added together give a triangular number (65703 = T₃₆₂).

The spelling of 6566736 in words is "six million, five hundred sixty-six thousand, seven hundred thirty-six".