605511660650 has 48 divisors (see below), whose sum is σ = 1224013975800. Its totient is φ = 221522376960.

The previous prime is 605511660617. The next prime is 605511660667. The reversal of 605511660650 is 56066115506.

It can be written as a sum of positive squares in 12 ways, for example, as 66387129649 + 539124531001 = 257657^2 + 734251^2 .

It is a junction number, because it is equal to n+sod(n) for n = 605511660598 and 605511660607.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4202345 + ... + 4344044.

Almost surely, 2^605511660650 is an apocalyptic number.

605511660650 is an abundant number, since it is smaller than the sum of its proper divisors (618502315150).

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

605511660650 is a wasteful number, since it uses less digits than its factorization.

605511660650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8546523 (or 8546518 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 605511660650 in words is "six hundred five billion, five hundred eleven million, six hundred sixty thousand, six hundred fifty".