20444260455 has 48 divisors (see below), whose sum is σ = 36266241024. Its totient is φ = 10649338560.

The previous prime is 20444260429. The next prime is 20444260481. The reversal of 20444260455 is 55406244402.

20444260455 is a `hidden beast` number, since 2 + 0 + 4 + 4 + 42 + 604 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (20444260429) and next prime (20444260481).

It is not a de Polignac number, because 20444260455 - 2⁷ = 20444260327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1028622 + ... + 1048308.

It is an arithmetic number, because the mean of its divisors is an integer number (755546688).

Almost surely, 2^20444260455 is an apocalyptic number.

20444260455 is a deficient number, since it is larger than the sum of its proper divisors (15821980569).

20444260455 is a wasteful number, since it uses less digits than its factorization.

20444260455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20236 (or 20233 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 20444260455 in words is "twenty billion, four hundred forty-four million, two hundred sixty thousand, four hundred fifty-five".