20402433332055 has 64 divisors (see below), whose sum is σ = 37849041699840. Its totient is φ = 10407909283200.

The previous prime is 20402433332053. The next prime is 20402433332089. The reversal of 20402433332055 is 55023333420402.

It is a happy number.

20402433332055 is a `hidden beast` number, since 2 + 0 + 40 + 243 + 3 + 3 + 320 + 55 = 666.

It is not a de Polignac number, because 20402433332055 - 2¹ = 20402433332053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20402433332053) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153727425 + ... + 153860085.

It is an arithmetic number, because the mean of its divisors is an integer number (591391276560).

Almost surely, 2^{20402433332055} is an apocalyptic number.

20402433332055 is a deficient number, since it is larger than the sum of its proper divisors (17446608367785).

20402433332055 is a wasteful number, since it uses less digits than its factorization.

20402433332055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182229 (or 182223 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 36.

Adding to 20402433332055 its reverse (55023333420402), we get a palindrome (75425766752457).

The spelling of 20402433332055 in words is "twenty trillion, four hundred two billion, four hundred thirty-three million, three hundred thirty-two thousand, fifty-five".