263437312116 has 24 divisors (see below), whose sum is σ = 670567703904. Its totient is φ = 79829488480.

The previous prime is 263437312093. The next prime is 263437312133. The reversal of 263437312116 is 611213734362.

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, 997868475 + ... + 997868738.

It is an arithmetic number, because the mean of its divisors is an integer number (27940320996).

Almost surely, 2^263437312116 is an apocalyptic number.

It is an amenable number.

263437312116 is an abundant number, since it is smaller than the sum of its proper divisors (407130391788).

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

263437312116 is a wasteful number, since it uses less digits than its factorization.

263437312116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995737231 (or 1995737229 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The spelling of 263437312116 in words is "two hundred sixty-three billion, four hundred thirty-seven million, three hundred twelve thousand, one hundred sixteen".