204523021404240 has 160 divisors (see below), whose sum is σ = 790468197083136. Its totient is φ = 42498290158080.

The previous prime is 204523021404193. The next prime is 204523021404277. The reversal of 204523021404240 is 42404120325402.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 5533613052 + ... + 5533650011.

Almost surely, 2^{204523021404240} is an apocalyptic number.

204523021404240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204523021404240 is an abundant number, since it is smaller than the sum of its proper divisors (585945175678896).

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

204523021404240 is a wasteful number, since it uses less digits than its factorization.

204523021404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11067263097 (or 11067263091 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 204523021404240 its reverse (42404120325402), we get a palindrome (246927141729642).

The spelling of 204523021404240 in words is "two hundred four trillion, five hundred twenty-three billion, twenty-one million, four hundred four thousand, two hundred forty".