660225650636 has 6 divisors (see below), whose sum is σ = 1155394888620. Its totient is φ = 330112825316.

The previous prime is 660225650627. The next prime is 660225650641. The reversal of 660225650636 is 636056522066.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82528206326 + ... + 82528206333.

It is an arithmetic number, because the mean of its divisors is an integer number (192565814770).

Almost surely, 2^660225650636 is an apocalyptic number.

It is an amenable number.

660225650636 is a deficient number, since it is larger than the sum of its proper divisors (495169237984).

660225650636 is a wasteful number, since it uses less digits than its factorization.

660225650636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165056412663 (or 165056412661 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 660225650636 in words is "six hundred sixty billion, two hundred twenty-five million, six hundred fifty thousand, six hundred thirty-six".