616010006666 has 8 divisors (see below), whose sum is σ = 936672750084. Its totient is φ = 303785756640.

The previous prime is 616010006657. The next prime is 616010006741. The reversal of 616010006666 is 666600010616.

It can be written as a sum of positive squares in 2 ways, for example, as 612104381641 + 3905625025 = 782371^2 + 62495^2 .

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

It is a Curzon number.

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, 2109623165 + ... + 2109623456.

Almost surely, 2^616010006666 is an apocalyptic number.

616010006666 is a deficient number, since it is larger than the sum of its proper divisors (320662743418).

616010006666 is a wasteful number, since it uses less digits than its factorization.

616010006666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219246696.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 616010006666 in words is "six hundred sixteen billion, ten million, six thousand, six hundred sixty-six".