204242541510 has 128 divisors (see below), whose sum is σ = 562009881600. Its totient is φ = 46534164480.

The previous prime is 204242541509. The next prime is 204242541539. The reversal of 204242541510 is 15145242402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 137166846 + ... + 137168334.

It is an arithmetic number, because the mean of its divisors is an integer number (4390702200).

Almost surely, 2^204242541510 is an apocalyptic number.

204242541510 is an abundant number, since it is smaller than the sum of its proper divisors (357767340090).

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

204242541510 is a wasteful number, since it uses less digits than its factorization.

204242541510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 204242541510 its reverse (15145242402), we get a palindrome (219387783912).

The spelling of 204242541510 in words is "two hundred four billion, two hundred forty-two million, five hundred forty-one thousand, five hundred ten".