20344458256 has 20 divisors (see below), whose sum is σ = 39447679552. Its totient is φ = 10164411936.

The previous prime is 20344458227. The next prime is 20344458269. The reversal of 20344458256 is 65285444302.

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 3 ways as a sum of consecutive naturals, for example, 467076 + ... + 508771.

Almost surely, 2^20344458256 is an apocalyptic number.

It is an amenable number.

20344458256 is a deficient number, since it is larger than the sum of its proper divisors (19103221296).

20344458256 is a wasteful number, since it uses less digits than its factorization.

20344458256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977158 (or 977152 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 43.

The spelling of 20344458256 in words is "twenty billion, three hundred forty-four million, four hundred fifty-eight thousand, two hundred fifty-six".