205052344140 has 96 divisors (see below), whose sum is σ = 667289064960. Its totient is φ = 46074710016.

The previous prime is 205052344111. The next prime is 205052344169. The reversal of 205052344140 is 41443250502.

It is an interprime number because it is at equal distance from previous prime (205052344111) and next prime (205052344169).

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

It is a junction number, because it is equal to n+sod(n) for n = 205052344098 and 205052344107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4112677 + ... + 4162236.

It is an arithmetic number, because the mean of its divisors is an integer number (6950927760).

Almost surely, 2^205052344140 is an apocalyptic number.

205052344140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205052344140 is an abundant number, since it is smaller than the sum of its proper divisors (462236720820).

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

205052344140 is a wasteful number, since it uses less digits than its factorization.

205052344140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8274991 (or 8274989 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 205052344140 its reverse (41443250502), we get a palindrome (246495594642).

The spelling of 205052344140 in words is "two hundred five billion, fifty-two million, three hundred forty-four thousand, one hundred forty".