63645114240220 has 48 divisors (see below), whose sum is σ = 133979665655808. Its totient is φ = 25396230070080.

The previous prime is 63645114240163. The next prime is 63645114240317. The reversal of 63645114240220 is 2204241154636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11240905 + ... + 15926335.

It is an arithmetic number, because the mean of its divisors is an integer number (2791243034496).

Almost surely, 2^{63645114240220} is an apocalyptic number.

It is an amenable number.

63645114240220 is an abundant number, since it is smaller than the sum of its proper divisors (70334551415588).

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

63645114240220 is a wasteful number, since it uses less digits than its factorization.

63645114240220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687090 (or 4687088 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

Adding to 63645114240220 its reverse (2204241154636), we get a palindrome (65849355394856).

The spelling of 63645114240220 in words is "sixty-three trillion, six hundred forty-five billion, one hundred fourteen million, two hundred forty thousand, two hundred twenty".