2656642226 has 16 divisors (see below), whose sum is σ = 4587011520. Its totient is φ = 1130369040.

The previous prime is 2656642189. The next prime is 2656642231. The reversal of 2656642226 is 6222466562.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680645 + ... + 684536.

It is an arithmetic number, because the mean of its divisors is an integer number (286688220).

Almost surely, 2^2656642226 is an apocalyptic number.

2656642226 is a deficient number, since it is larger than the sum of its proper divisors (1930369294).

2656642226 is a wasteful number, since it uses less digits than its factorization.

2656642226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365329.

The product of its digits is 414720, while the sum is 41.

The square root of 2656642226 is about 51542.6253308851. The cubic root of 2656642226 is about 1384.9827270455.

The spelling of 2656642226 in words is "two billion, six hundred fifty-six million, six hundred forty-two thousand, two hundred twenty-six".