2666855250846 has 64 divisors (see below), whose sum is σ = 5945557282560. Its totient is φ = 886071759840.

The previous prime is 2666855250833. The next prime is 2666855250881. The reversal of 2666855250846 is 6480525586662.

It is a super-2 number, since 2×2666855250846² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55384201 + ... + 55432331.

It is an arithmetic number, because the mean of its divisors is an integer number (92899332540).

Almost surely, 2^{2666855250846} is an apocalyptic number.

2666855250846 is an abundant number, since it is smaller than the sum of its proper divisors (3278702031714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2666855250846 is a wasteful number, since it uses less digits than its factorization.

2666855250846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51446 (or 51440 counting only the distinct ones).

The product of its (nonzero) digits is 165888000, while the sum is 63.

The spelling of 2666855250846 in words is "two trillion, six hundred sixty-six billion, eight hundred fifty-five million, two hundred fifty thousand, eight hundred forty-six".