20003512635104 has 24 divisors (see below), whose sum is σ = 39382184910600. Its totient is φ = 10001687895936.

The previous prime is 20003512635077. The next prime is 20003512635107. The reversal of 20003512635104 is 40153621530002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003512635107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2787167 + ... + 6911969.

It is an arithmetic number, because the mean of its divisors is an integer number (1640924371275).

Almost surely, 2^{20003512635104} is an apocalyptic number.

It is an amenable number.

20003512635104 is a deficient number, since it is larger than the sum of its proper divisors (19378672275496).

20003512635104 is a wasteful number, since it uses less digits than its factorization.

20003512635104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4276362 (or 4276354 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 20003512635104 in words is "twenty trillion, three billion, five hundred twelve million, six hundred thirty-five thousand, one hundred four".