263505616715140 has 48 divisors (see below), whose sum is σ = 557481240388800. Its totient is φ = 104617967110272.

The previous prime is 263505616715057. The next prime is 263505616715141. The reversal of 263505616715140 is 41517616505362.

It is not an unprimeable number, because it can be changed into a prime (263505616715141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573775 + ... + 22963894.

It is an arithmetic number, because the mean of its divisors is an integer number (11614192508100).

Almost surely, 2^{263505616715140} is an apocalyptic number.

263505616715140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263505616715140 is an abundant number, since it is smaller than the sum of its proper divisors (293975623673660).

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

263505616715140 is a wasteful number, since it uses less digits than its factorization.

263505616715140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23541844 (or 23541842 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 263505616715140 in words is "two hundred sixty-three trillion, five hundred five billion, six hundred sixteen million, seven hundred fifteen thousand, one hundred forty".