66006015 has 8 divisors (see below), whose sum is σ = 105609648. Its totient is φ = 35203200.

The previous prime is 66006013. The next prime is 66006047. The reversal of 66006015 is 51060066.

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

It is not a de Polignac number, because 66006015 - 2¹ = 66006013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66006013) 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, 2200186 + ... + 2200215.

It is an arithmetic number, because the mean of its divisors is an integer number (13201206).

Almost surely, 2^66006015 is an apocalyptic number.

66006015 is a deficient number, since it is larger than the sum of its proper divisors (39603633).

66006015 is a wasteful number, since it uses less digits than its factorization.

66006015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400409.

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

The square root of 66006015 is about 8124.4085938608. The cubic root of 66006015 is about 404.1362784866.

The spelling of 66006015 in words is "sixty-six million, six thousand, fifteen".