20004140235155 has 8 divisors (see below), whose sum is σ = 24039212178384. Its totient is φ = 15980482924000.

The previous prime is 20004140235073. The next prime is 20004140235179. The reversal of 20004140235155 is 55153204140002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20004140235155 - 2¹⁶ = 20004140169619 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2853654161 + ... + 2853661170.

It is an arithmetic number, because the mean of its divisors is an integer number (3004901522298).

Almost surely, 2^{20004140235155} is an apocalyptic number.

20004140235155 is a deficient number, since it is larger than the sum of its proper divisors (4035071943229).

20004140235155 is an equidigital number, since it uses as much as digits as its factorization.

20004140235155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5707316037.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 20004140235155 its reverse (55153204140002), we get a palindrome (75157344375157).

The spelling of 20004140235155 in words is "twenty trillion, four billion, one hundred forty million, two hundred thirty-five thousand, one hundred fifty-five".