6665461 has 8 divisors (see below), whose sum is σ = 7326144. Its totient is φ = 6013920.

The previous prime is 6665437. The next prime is 6665497. The reversal of 6665461 is 1645666.

6665461 = 149² + 150² + ... + 285².

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

It is not a de Polignac number, because 6665461 - 2¹⁷ = 6534389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6665261) 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, 705 + ... + 3718.

It is an arithmetic number, because the mean of its divisors is an integer number (915768).

Almost surely, 2^6665461 is an apocalyptic number.

It is an amenable number.

6665461 is a deficient number, since it is larger than the sum of its proper divisors (660683).

6665461 is a wasteful number, since it uses less digits than its factorization.

6665461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571.

The product of its digits is 25920, while the sum is 34.

The square root of 6665461 is about 2581.7554105686. The cubic root of 6665461 is about 188.1958593345.

The spelling of 6665461 in words is "six million, six hundred sixty-five thousand, four hundred sixty-one".