66001506 has 16 divisors (see below), whose sum is σ = 136555200. Its totient is φ = 21241808.

The previous prime is 66001447. The next prime is 66001541. The reversal of 66001506 is 60510066.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189486 + ... + 189833.

It is an arithmetic number, because the mean of its divisors is an integer number (8534700).

Almost surely, 2^66001506 is an apocalyptic number.

66001506 is an abundant number, since it is smaller than the sum of its proper divisors (70553694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66001506 is a wasteful number, since it uses less digits than its factorization.

66001506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379353.

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

The square root of 66001506 is about 8124.1310919999. The cubic root of 66001506 is about 404.1270758305.

The spelling of 66001506 in words is "sixty-six million, one thousand, five hundred six".