204021041156064 has 96 divisors (see below), whose sum is σ = 649157858254080. Its totient is φ = 61824557923200.

The previous prime is 204021041156021. The next prime is 204021041156077. The reversal of 204021041156064 is 460651140120402.

204021041156064 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 2 + 1 + 0 + 41 + 1 + 5 + 606 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10733420692 + ... + 10733439699.

It is an arithmetic number, because the mean of its divisors is an integer number (6762061023480).

Almost surely, 2^{204021041156064} is an apocalyptic number.

204021041156064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

204021041156064 is an abundant number, since it is smaller than the sum of its proper divisors (445136817098016).

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

204021041156064 is a wasteful number, since it uses less digits than its factorization.

204021041156064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21466860421 (or 21466860407 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

Adding to 204021041156064 its reverse (460651140120402), we get a palindrome (664672181276466).

The spelling of 204021041156064 in words is "two hundred four trillion, twenty-one billion, forty-one million, one hundred fifty-six thousand, sixty-four".