204013321015504 has 160 divisors (see below), whose sum is σ = 530739286511616. Its totient is φ = 73368753384960.

The previous prime is 204013321015489. The next prime is 204013321015513. The reversal of 204013321015504 is 405510123310402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 469484059 + ... + 469918405.

Almost surely, 2^{204013321015504} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204013321015504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265369643255808).

204013321015504 is an abundant number, since it is smaller than the sum of its proper divisors (326725965496112).

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

204013321015504 is a wasteful number, since it uses less digits than its factorization.

204013321015504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463713 (or 463707 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 204013321015504 its reverse (405510123310402), we get a palindrome (609523444325906).

The spelling of 204013321015504 in words is "two hundred four trillion, thirteen billion, three hundred twenty-one million, fifteen thousand, five hundred four".