20004140355 has 16 divisors (see below), whose sum is σ = 32018899104. Its totient is φ = 10664783360.

The previous prime is 20004140341. The next prime is 20004140357. The reversal of 20004140355 is 55304140002.

It is not a de Polignac number, because 20004140355 - 2⁵ = 20004140323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20004140357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215094 + ... + 293723.

It is an arithmetic number, because the mean of its divisors is an integer number (2001181194).

Almost surely, 2^20004140355 is an apocalyptic number.

20004140355 is a deficient number, since it is larger than the sum of its proper divisors (12014758749).

20004140355 is a wasteful number, since it uses less digits than its factorization.

20004140355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511446.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 20004140355 its reverse (55304140002), we get a palindrome (75308280357).

The spelling of 20004140355 in words is "twenty billion, four million, one hundred forty thousand, three hundred fifty-five".