6661414 has 8 divisors (see below), whose sum is σ = 10112760. Its totient is φ = 3290496.

The previous prime is 6661409. The next prime is 6661423. The reversal of 6661414 is 4141666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19899 + ... + 20230.

It is an arithmetic number, because the mean of its divisors is an integer number (1264095).

Almost surely, 2^6661414 is an apocalyptic number.

6661414 is a deficient number, since it is larger than the sum of its proper divisors (3451346).

6661414 is a wasteful number, since it uses less digits than its factorization.

6661414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40214.

The product of its digits is 3456, while the sum is 28.

The square root of 6661414 is about 2580.9715225085. The cubic root of 6661414 is about 188.1577633029.

It can be divided in two parts, 666 and 1414, that added together give a triangular number (2080 = T₆₄).

The spelling of 6661414 in words is "six million, six hundred sixty-one thousand, four hundred fourteen".