205225133300644 has 12 divisors (see below), whose sum is σ = 359144117634204. Its totient is φ = 102612528262304.

The previous prime is 205225133300641. The next prime is 205225133300647. The reversal of 205225133300644 is 446003331522502.

It is an interprime number because it is at equal distance from previous prime (205225133300641) and next prime (205225133300647).

It can be written as a sum of positive squares in 2 ways, for example, as 128839071532900 + 76386061767744 = 11350730^2 + 8739912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 205225133300597 and 205225133300606.

It is not an unprimeable number, because it can be changed into a prime (205225133300641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4847154 + ... + 20831350.

It is an arithmetic number, because the mean of its divisors is an integer number (29928676469517).

Almost surely, 2^{205225133300644} is an apocalyptic number.

It is an amenable number.

205225133300644 is a deficient number, since it is larger than the sum of its proper divisors (153918984333560).

205225133300644 is a wasteful number, since it uses less digits than its factorization.

205225133300644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19194014 (or 19194012 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 40.

The spelling of 205225133300644 in words is "two hundred five trillion, two hundred twenty-five billion, one hundred thirty-three million, three hundred thousand, six hundred forty-four".