655361487936 has 189 divisors, whose sum is σ = 1904844933381. Its totient is φ = 215429372928.

The previous prime is 655361487899. The next prime is 655361487941. The reversal of 655361487936 is 639784163556.

The square root of 655361487936 is 809544.

It is a perfect power (a square), and thus also a powerful number.

655361487936 is a `hidden beast` number, since 6 + 5 + 5 + 3 + 61 + 487 + 93 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 125843305536 + 529518182400 = 354744^2 + 727680^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1729185795 + ... + 1729186173.

Almost surely, 2^655361487936 is an apocalyptic number.

655361487936 is the 809544-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655361487936

655361487936 is an abundant number, since it is smaller than the sum of its proper divisors (1249483445445).

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

655361487936 is an frugal number, since it uses more digits than its factorization.

655361487936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954 (or 473 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 63.

The spelling of 655361487936 in words is "six hundred fifty-five billion, three hundred sixty-one million, four hundred eighty-seven thousand, nine hundred thirty-six".