6661136 has 20 divisors (see below), whose sum is σ = 12951552. Its totient is φ = 3318816.

The previous prime is 6661117. The next prime is 6661141. The reversal of 6661136 is 6311666.

It is a junction number, because it is equal to n+sod(n) for n = 6661099 and 6661108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5585 + ... + 6671.

Almost surely, 2^6661136 is an apocalyptic number.

It is an amenable number.

6661136 is a deficient number, since it is larger than the sum of its proper divisors (6290416).

6661136 is a wasteful number, since it uses less digits than its factorization.

6661136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478 (or 1472 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 6661136 is about 2580.9176662575. The cubic root of 6661136 is about 188.1551458113.

The spelling of 6661136 in words is "six million, six hundred sixty-one thousand, one hundred thirty-six".