2666541 has 8 divisors (see below), whose sum is σ = 3598560. Its totient is φ = 1756112.

The previous prime is 2666539. The next prime is 2666561. The reversal of 2666541 is 1456662.

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

It is a cyclic number.

It is not a de Polignac number, because 2666541 - 2¹ = 2666539 is a prime.

It is a super-2 number, since 2×2666541² = 14220881809362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666499 and 2666508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666561) 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, 5106 + ... + 5603.

It is an arithmetic number, because the mean of its divisors is an integer number (449820).

2^2666541 is an apocalyptic number.

It is an amenable number.

2666541 is a deficient number, since it is larger than the sum of its proper divisors (932019).

2666541 is a wasteful number, since it uses less digits than its factorization.

2666541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10795.

The product of its digits is 8640, while the sum is 30.

The square root of 2666541 is about 1632.9546840008. The cubic root of 2666541 is about 138.6700765259.

The spelling of 2666541 in words is "two million, six hundred sixty-six thousand, five hundred forty-one".