20104432502355 has 96 divisors (see below), whose sum is σ = 35188813670400. Its totient is φ = 10618052062464.

The previous prime is 20104432502339. The next prime is 20104432502359. The reversal of 20104432502355 is 55320523440102.

20104432502355 is a `hidden beast` number, since 2 + 0 + 10 + 4 + 43 + 250 + 2 + 355 = 666.

It is not a de Polignac number, because 20104432502355 - 2⁴ = 20104432502339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20104432502359) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1628806314 + ... + 1628818656.

It is an arithmetic number, because the mean of its divisors is an integer number (366550142400).

Almost surely, 2^{20104432502355} is an apocalyptic number.

20104432502355 is a deficient number, since it is larger than the sum of its proper divisors (15084381168045).

20104432502355 is a wasteful number, since it uses less digits than its factorization.

20104432502355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13425 (or 13422 counting only the distinct ones).

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

Adding to 20104432502355 its reverse (55320523440102), we get a palindrome (75424955942457).

The spelling of 20104432502355 in words is "twenty trillion, one hundred four billion, four hundred thirty-two million, five hundred two thousand, three hundred fifty-five".