6650650 has 12 divisors (see below), whose sum is σ = 12370302. Its totient is φ = 2660240.

The previous prime is 6650629. The next prime is 6650659. The reversal of 6650650 is 560566.

It can be written as a sum of positive squares in 3 ways, for example, as 4968441 + 1682209 = 2229^2 + 1297^2 .

It is a super-2 number, since 2×6650650² = 88462290845000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6650659) 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 5 ways as a sum of consecutive naturals, for example, 66457 + ... + 66556.

Almost surely, 2^6650650 is an apocalyptic number.

6650650 is a deficient number, since it is larger than the sum of its proper divisors (5719652).

6650650 is a wasteful number, since it uses less digits than its factorization.

6650650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133025 (or 133020 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 6650650 is about 2578.8854181603. The cubic root of 6650650 is about 188.0563623072.

The spelling of 6650650 in words is "six million, six hundred fifty thousand, six hundred fifty".