63661677616636 has 24 divisors (see below), whose sum is σ = 121543849450800. Its totient is φ = 28935240604800.

The previous prime is 63661677616613. The next prime is 63661677616643.

63661677616636 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46456585 + ... + 47807296.

It is an arithmetic number, because the mean of its divisors is an integer number (5064327060450).

Almost surely, 2^{63661677616636} is an apocalyptic number.

It is an amenable number.

63661677616636 is a deficient number, since it is larger than the sum of its proper divisors (57882171834164).

63661677616636 is a wasteful number, since it uses less digits than its factorization.

63661677616636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94279245 (or 94279243 counting only the distinct ones).

The product of its digits is 740710656, while the sum is 70.

The spelling of 63661677616636 in words is "sixty-three trillion, six hundred sixty-one billion, six hundred seventy-seven million, six hundred sixteen thousand, six hundred thirty-six".