66001106506 has 8 divisors (see below), whose sum is σ = 99161599680. Its totient is φ = 32947239948.

The previous prime is 66001106503. The next prime is 66001106513. The reversal of 66001106506 is 60560110066.

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

It is a super-2 number, since 2×66001106506² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66001106503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26655106 + ... + 26657581.

It is an arithmetic number, because the mean of its divisors is an integer number (12395199960).

Almost surely, 2^66001106506 is an apocalyptic number.

66001106506 is a deficient number, since it is larger than the sum of its proper divisors (33160493174).

66001106506 is a wasteful number, since it uses less digits than its factorization.

66001106506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53313308.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 66001106506 in words is "sixty-six billion, one million, one hundred six thousand, five hundred six".