2666622222266 has 32 divisors (see below), whose sum is σ = 4349605201920. Its totient is φ = 1221454522800.

The previous prime is 2666622222241. The next prime is 2666622222289. The reversal of 2666622222266 is 6622222266662.

It is a super-2 number, since 2×2666622222266² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673661 + ... + 2405631.

It is an arithmetic number, because the mean of its divisors is an integer number (135925162560).

Almost surely, 2^{2666622222266} is an apocalyptic number.

2666622222266 is a deficient number, since it is larger than the sum of its proper divisors (1682982979654).

2666622222266 is a wasteful number, since it uses less digits than its factorization.

2666622222266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733330.

The product of its digits is 5971968, while the sum is 50.

The spelling of 2666622222266 in words is "two trillion, six hundred sixty-six billion, six hundred twenty-two million, two hundred twenty-two thousand, two hundred sixty-six".