203041595709816 has 128 divisors (see below), whose sum is σ = 539901491834880. Its totient is φ = 63410353330176.

The previous prime is 203041595709787. The next prime is 203041595709893. The reversal of 203041595709816 is 618907595140302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 203041595709816.

It is a congruent number.

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, 2184206410 + ... + 2184299366.

It is an arithmetic number, because the mean of its divisors is an integer number (4217980404960).

It is a 1-persistent number, because it is pandigital, but 2⋅203041595709816 = 406083191419632 is not.

Almost surely, 2^{203041595709816} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203041595709816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269950745917440).

203041595709816 is an abundant number, since it is smaller than the sum of its proper divisors (336859896125064).

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

203041595709816 is a wasteful number, since it uses less digits than its factorization.

203041595709816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117213 (or 117209 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 60.

The spelling of 203041595709816 in words is "two hundred three trillion, forty-one billion, five hundred ninety-five million, seven hundred nine thousand, eight hundred sixteen".