205333510040 has 32 divisors (see below), whose sum is σ = 462019902480. Its totient is φ = 82129936512.

The previous prime is 205333510009. The next prime is 205333510103. The reversal of 205333510040 is 40015333502.

It is a junction number, because it is equal to n+sod(n) for n = 205333509991 and 205333510009.

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 7 ways as a sum of consecutive naturals, for example, 987854 + ... + 1177506.

Almost surely, 2^205333510040 is an apocalyptic number.

205333510040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205333510040 is an abundant number, since it is smaller than the sum of its proper divisors (256686392440).

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

205333510040 is a wasteful number, since it uses less digits than its factorization.

205333510040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216731 (or 216727 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 205333510040 its reverse (40015333502), we get a palindrome (245348843542).

The spelling of 205333510040 in words is "two hundred five billion, three hundred thirty-three million, five hundred ten thousand, forty".