222605442655 has 16 divisors (see below), whose sum is σ = 277651561824. Its totient is φ = 171183646080.

The previous prime is 222605442649. The next prime is 222605442737. The reversal of 222605442655 is 556244506222.

It is not a de Polignac number, because 222605442655 - 2²³ = 222597054047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7233276 + ... + 7263985.

It is an arithmetic number, because the mean of its divisors is an integer number (17353222614).

Almost surely, 2^222605442655 is an apocalyptic number.

222605442655 is a deficient number, since it is larger than the sum of its proper divisors (55046119169).

222605442655 is a wasteful number, since it uses less digits than its factorization.

222605442655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14497386.

The product of its (nonzero) digits is 1152000, while the sum is 43.

Adding to 222605442655 its reverse (556244506222), we get a palindrome (778849948877).

The spelling of 222605442655 in words is "two hundred twenty-two billion, six hundred five million, four hundred forty-two thousand, six hundred fifty-five".