2215603441256 has 64 divisors (see below), whose sum is σ = 4474117803600. Its totient is φ = 1026437142528.

The previous prime is 2215603441237. The next prime is 2215603441267. The reversal of 2215603441256 is 6521443065122.

It can be written as a sum of positive squares in 8 ways, for example, as 1487936436100 + 727667005156 = 1219810^2 + 853034^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1141235 + ... + 2394498.

Almost surely, 2^{2215603441256} is an apocalyptic number.

It is an amenable number.

2215603441256 is an abundant number, since it is smaller than the sum of its proper divisors (2258514362344).

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

2215603441256 is a wasteful number, since it uses less digits than its factorization.

2215603441256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535878 (or 3535874 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 2215603441256 in words is "two trillion, two hundred fifteen billion, six hundred three million, four hundred forty-one thousand, two hundred fifty-six".