6661419 has 8 divisors (see below), whose sum is σ = 9349440. Its totient is φ = 4207176.

The previous prime is 6661409. The next prime is 6661423. The reversal of 6661419 is 9141666.

6661419 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6661419 - 2¹⁵ = 6628651 is a prime.

It is a super-2 number, since 2×6661419² = 88749006187122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6661419.

It is not an unprimeable number, because it can be changed into a prime (6661409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58377 + ... + 58490.

It is an arithmetic number, because the mean of its divisors is an integer number (1168680).

Almost surely, 2^6661419 is an apocalyptic number.

6661419 is a deficient number, since it is larger than the sum of its proper divisors (2688021).

6661419 is a wasteful number, since it uses less digits than its factorization.

6661419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116889.

The product of its digits is 7776, while the sum is 33.

The square root of 6661419 is about 2580.9724911359. The cubic root of 6661419 is about 188.1578103794.

The spelling of 6661419 in words is "six million, six hundred sixty-one thousand, four hundred nineteen".