204215521152 has 32 divisors (see below), whose sum is σ = 542447479080. Its totient is φ = 68071840256.

The previous prime is 204215521141. The next prime is 204215521157. The reversal of 204215521152 is 251125512402.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204215521157) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 265905243 + ... + 265906010.

Almost surely, 2^204215521152 is an apocalyptic number.

It is an amenable number.

204215521152 is an abundant number, since it is smaller than the sum of its proper divisors (338231957928).

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

204215521152 is an equidigital number, since it uses as much as digits as its factorization.

204215521152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531811270 (or 531811258 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 204215521152 in words is "two hundred four billion, two hundred fifteen million, five hundred twenty-one thousand, one hundred fifty-two".