20104145004 has 24 divisors (see below), whose sum is σ = 46911986800. Its totient is φ = 6701050944.

The previous prime is 20104144997. The next prime is 20104145059. The reversal of 20104145004 is 40054140102.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 402822 + ... + 449970.

Almost surely, 2^20104145004 is an apocalyptic number.

It is an amenable number.

20104145004 is an abundant number, since it is smaller than the sum of its proper divisors (26807841796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20104145004 is a wasteful number, since it uses less digits than its factorization.

20104145004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82689 (or 82687 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 20104145004 its reverse (40054140102), we get a palindrome (60158285106).

The spelling of 20104145004 in words is "twenty billion, one hundred four million, one hundred forty-five thousand, four".