255406402222 has 16 divisors (see below), whose sum is σ = 397214947440. Its totient is φ = 123021301312.

The previous prime is 255406402217. The next prime is 255406402267. The reversal of 255406402222 is 222204604552.

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 7 ways as a sum of consecutive naturals, for example, 4944463 + ... + 4995850.

It is an arithmetic number, because the mean of its divisors is an integer number (24825934215).

Almost surely, 2^255406402222 is an apocalyptic number.

255406402222 is a deficient number, since it is larger than the sum of its proper divisors (141808545218).

255406402222 is a wasteful number, since it uses less digits than its factorization.

255406402222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9940787.

The product of its (nonzero) digits is 76800, while the sum is 34.

The spelling of 255406402222 in words is "two hundred fifty-five billion, four hundred six million, four hundred two thousand, two hundred twenty-two".