635675163648 has 176 divisors, whose sum is σ = 1937394514944. Its totient is φ = 181523496960.

The previous prime is 635675163637. The next prime is 635675163653. The reversal of 635675163648 is 846361576536.

It is a junction number, because it is equal to n+sod(n) for n = 635675163591 and 635675163600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46033161 + ... + 46046967.

Almost surely, 2^635675163648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 635675163648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (968697257472).

635675163648 is an abundant number, since it is smaller than the sum of its proper divisors (1301719351296).

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

635675163648 is a wasteful number, since it uses less digits than its factorization.

635675163648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15978 (or 15960 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 60.

The spelling of 635675163648 in words is "six hundred thirty-five billion, six hundred seventy-five million, one hundred sixty-three thousand, six hundred forty-eight".