63360642304661 has 4 divisors (see below), whose sum is σ = 68234537866572. Its totient is φ = 58486746742752.

The previous prime is 63360642304637. The next prime is 63360642304667. The reversal of 63360642304661 is 16640324606336.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9214223824036 + 54146418480625 = 3035494^2 + 7358425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63360642304661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63360642304667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2436947780936 + ... + 2436947780961.

It is an arithmetic number, because the mean of its divisors is an integer number (17058634466643).

Almost surely, 2^{63360642304661} is an apocalyptic number.

It is an amenable number.

63360642304661 is a deficient number, since it is larger than the sum of its proper divisors (4873895561911).

63360642304661 is a wasteful number, since it uses less digits than its factorization.

63360642304661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4873895561910.

The product of its (nonzero) digits is 6718464, while the sum is 50.

The spelling of 63360642304661 in words is "sixty-three trillion, three hundred sixty billion, six hundred forty-two million, three hundred four thousand, six hundred sixty-one".