205153510000 has 50 divisors (see below), whose sum is σ = 496697187272. Its totient is φ = 82061400000.

The previous prime is 205153509973. The next prime is 205153510007. The reversal of 205153510000 is 15351502.

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205153510007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10247676 + ... + 10267675.

Almost surely, 2^205153510000 is an apocalyptic number.

205153510000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205153510000 is an abundant number, since it is smaller than the sum of its proper divisors (291543677272).

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

205153510000 is an equidigital number, since it uses as much as digits as its factorization.

205153510000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20515379 (or 20515358 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

Adding to 205153510000 its reverse (15351502), we get a palindrome (205168861502).

The spelling of 205153510000 in words is "two hundred five billion, one hundred fifty-three million, five hundred ten thousand".