635664632245 has 8 divisors (see below), whose sum is σ = 762870276000. Its totient is φ = 508483227600.

The previous prime is 635664632237. The next prime is 635664632249. The reversal of 635664632245 is 542236466536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 635664632245 - 2³ = 635664632237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 635664632192 and 635664632201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635664632249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6002031 + ... + 6107020.

It is an arithmetic number, because the mean of its divisors is an integer number (95358784500).

Almost surely, 2^635664632245 is an apocalyptic number.

It is an amenable number.

635664632245 is a deficient number, since it is larger than the sum of its proper divisors (127205643755).

635664632245 is a wasteful number, since it uses less digits than its factorization.

635664632245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12119555.

The product of its digits is 18662400, while the sum is 52.

The spelling of 635664632245 in words is "six hundred thirty-five billion, six hundred sixty-four million, six hundred thirty-two thousand, two hundred forty-five".