204515135452 has 48 divisors (see below), whose sum is σ = 365883880320. Its totient is φ = 99996541632.

The previous prime is 204515135389. The next prime is 204515135497. The reversal of 204515135452 is 254531515402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39124063 + ... + 39129289.

It is an arithmetic number, because the mean of its divisors is an integer number (7622580840).

Almost surely, 2^204515135452 is an apocalyptic number.

It is an amenable number.

204515135452 is a deficient number, since it is larger than the sum of its proper divisors (161368744868).

204515135452 is a wasteful number, since it uses less digits than its factorization.

204515135452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6130 (or 6128 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 204515135452 in words is "two hundred four billion, five hundred fifteen million, one hundred thirty-five thousand, four hundred fifty-two".