203064840641 has 16 divisors (see below), whose sum is σ = 219764188560. Its totient is φ = 186520561920.

The previous prime is 203064840617. The next prime is 203064840653. The reversal of 203064840641 is 146048460302.

It can be written as a sum of positive squares in 8 ways, for example, as 25385730241 + 177679110400 = 159329^2 + 421520^2 .

It is a cyclic number.

It is not a de Polignac number, because 203064840641 - 2⁶ = 203064840577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203064840595 and 203064840604.

It is not an unprimeable number, because it can be changed into a prime (203064840841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5521871 + ... + 5558523.

It is an arithmetic number, because the mean of its divisors is an integer number (13735261785).

Almost surely, 2^203064840641 is an apocalyptic number.

It is an amenable number.

203064840641 is a deficient number, since it is larger than the sum of its proper divisors (16699347919).

203064840641 is a wasteful number, since it uses less digits than its factorization.

203064840641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38756.

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 203064840641 in words is "two hundred three billion, sixty-four million, eight hundred forty thousand, six hundred forty-one".