63540365140 has 24 divisors (see below), whose sum is σ = 152496876672. Its totient is φ = 21785268000.

The previous prime is 63540365111. The next prime is 63540365159. The reversal of 63540365140 is 4156304536.

63540365140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 63540365140.

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, 226929736 + ... + 226930015.

It is an arithmetic number, because the mean of its divisors is an integer number (6354036528).

Almost surely, 2^63540365140 is an apocalyptic number.

It is an amenable number.

63540365140 is an abundant number, since it is smaller than the sum of its proper divisors (88956511532).

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

63540365140 is a wasteful number, since it uses less digits than its factorization.

63540365140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453859767 (or 453859765 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 63540365140 its reverse (4156304536), we get a palindrome (67696669676).

The spelling of 63540365140 in words is "sixty-three billion, five hundred forty million, three hundred sixty-five thousand, one hundred forty".