20010235455 has 24 divisors (see below), whose sum is σ = 39639324192. Its totient is φ = 9147536064.

The previous prime is 20010235391. The next prime is 20010235457. The reversal of 20010235455 is 55453201002.

It is a happy number.

20010235455 is a `hidden beast` number, since 200 + 1 + 0 + 2 + 3 + 5 + 455 = 666.

It is not a de Polignac number, because 20010235455 - 2⁶ = 20010235391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010235457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31761964 + ... + 31762593.

It is an arithmetic number, because the mean of its divisors is an integer number (1651638508).

Almost surely, 2^20010235455 is an apocalyptic number.

20010235455 is a deficient number, since it is larger than the sum of its proper divisors (19629088737).

20010235455 is a wasteful number, since it uses less digits than its factorization.

20010235455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63524575 (or 63524572 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 20010235455 its reverse (55453201002), we get a palindrome (75463436457).

The spelling of 20010235455 in words is "twenty billion, ten million, two hundred thirty-five thousand, four hundred fifty-five".