205244030000 has 50 divisors (see below), whose sum is σ = 496916345244. Its totient is φ = 82097608000.

The previous prime is 205244029987. The next prime is 205244030023. The reversal of 205244030000 is 30442502.

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

It is a super-2 number, since 2×205244030000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10252202 + ... + 10272201.

Almost surely, 2^205244030000 is an apocalyptic number.

205244030000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205244030000 is an abundant number, since it is smaller than the sum of its proper divisors (291672315244).

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

205244030000 is an equidigital number, since it uses as much as digits as its factorization.

205244030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20524431 (or 20524410 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 205244030000 its reverse (30442502), we get a palindrome (205274472502).

The spelling of 205244030000 in words is "two hundred five billion, two hundred forty-four million, thirty thousand".