2516676221666 has 8 divisors (see below), whose sum is σ = 3775827401424. Its totient is φ = 1258067087860.

The previous prime is 2516676221627. The next prime is 2516676221669. The reversal of 2516676221666 is 6661226766152.

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

It is not an unprimeable number, because it can be changed into a prime (2516676221669) 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, 135499880 + ... + 135518451.

It is an arithmetic number, because the mean of its divisors is an integer number (471978425178).

Almost surely, 2^{2516676221666} is an apocalyptic number.

2516676221666 is a deficient number, since it is larger than the sum of its proper divisors (1259151179758).

2516676221666 is a wasteful number, since it uses less digits than its factorization.

2516676221666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271022976.

The product of its digits is 13063680, while the sum is 56.

The spelling of 2516676221666 in words is "two trillion, five hundred sixteen billion, six hundred seventy-six million, two hundred twenty-one thousand, six hundred sixty-six".