66126506 has 8 divisors (see below), whose sum is σ = 99688800. Its totient is φ = 32896908.

The previous prime is 66126493. The next prime is 66126523. The reversal of 66126506 is 60562166.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82676 + ... + 83471.

It is an arithmetic number, because the mean of its divisors is an integer number (12461100).

Almost surely, 2^66126506 is an apocalyptic number.

66126506 is a deficient number, since it is larger than the sum of its proper divisors (33562294).

66126506 is a wasteful number, since it uses less digits than its factorization.

66126506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166348.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 66126506 is about 8131.8205833626. The cubic root of 66126506 is about 404.3820398479.

The spelling of 66126506 in words is "sixty-six million, one hundred twenty-six thousand, five hundred six".