20334454155 has 24 divisors (see below), whose sum is σ = 35588593248. Its totient is φ = 10739748096.

The previous prime is 20334454121. The next prime is 20334454159. The reversal of 20334454155 is 55145443302.

20334454155 is a `hidden beast` number, since 20 + 3 + 3 + 44 + 541 + 55 = 666.

It is not a de Polignac number, because 20334454155 - 2¹¹ = 20334452107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20334454159) 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, 2188942 + ... + 2198211.

It is an arithmetic number, because the mean of its divisors is an integer number (1482858052).

Almost surely, 2^20334454155 is an apocalyptic number.

20334454155 is a deficient number, since it is larger than the sum of its proper divisors (15254139093).

20334454155 is a wasteful number, since it uses less digits than its factorization.

20334454155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387267 (or 4387264 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 20334454155 its reverse (55145443302), we get a palindrome (75479897457).

The spelling of 20334454155 in words is "twenty billion, three hundred thirty-four million, four hundred fifty-four thousand, one hundred fifty-five".