20044102455 has 80 divisors (see below), whose sum is σ = 39518607744. Its totient is φ = 9657792000.

The previous prime is 20044102447. The next prime is 20044102457. The reversal of 20044102455 is 55420144002.

20044102455 is a `hidden beast` number, since 2 + 0 + 0 + 4 + 410 + 245 + 5 = 666.

It is not a de Polignac number, because 20044102455 - 2³ = 20044102447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044102457) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 206955 + ... + 287955.

Almost surely, 2^20044102455 is an apocalyptic number.

20044102455 is a deficient number, since it is larger than the sum of its proper divisors (19474505289).

20044102455 is a wasteful number, since it uses less digits than its factorization.

20044102455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81078 (or 81069 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 20044102455 its reverse (55420144002), we get a palindrome (75464246457).

The spelling of 20044102455 in words is "twenty billion, forty-four million, one hundred two thousand, four hundred fifty-five".