2616160220666 has 8 divisors (see below), whose sum is σ = 3977997048084. Its totient is φ = 1290161204640.

The previous prime is 2616160220657. The next prime is 2616160220683. The reversal of 2616160220666 is 6660220616162.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2527130193025 + 89030027641 = 1589695^2 + 298379^2 .

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, 8959452665 + ... + 8959452956.

Almost surely, 2^{2616160220666} is an apocalyptic number.

2616160220666 is a deficient number, since it is larger than the sum of its proper divisors (1361836827418).

2616160220666 is a wasteful number, since it uses less digits than its factorization.

2616160220666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17918905696.

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 2616160220666 in words is "two trillion, six hundred sixteen billion, one hundred sixty million, two hundred twenty thousand, six hundred sixty-six".