6660501 has 16 divisors (see below), whose sum is σ = 9386496. Its totient is φ = 4192496.

The previous prime is 6660499. The next prime is 6660503. The reversal of 6660501 is 1050666.

It is an interprime number because it is at equal distance from previous prime (6660499) and next prime (6660503).

It is not a de Polignac number, because 6660501 - 2¹ = 6660499 is a prime.

It is a Curzon number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660503) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5146 + ... + 6308.

It is an arithmetic number, because the mean of its divisors is an integer number (586656).

Almost surely, 2^6660501 is an apocalyptic number.

It is an amenable number.

6660501 is a deficient number, since it is larger than the sum of its proper divisors (2725995).

6660501 is a wasteful number, since it uses less digits than its factorization.

6660501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 6660501 is about 2580.7946450657. The cubic root of 6660501 is about 188.1491667353.

The spelling of 6660501 in words is "six million, six hundred sixty thousand, five hundred one".