263745166216 has 64 divisors (see below), whose sum is σ = 590020992000. Its totient is φ = 108134611200.

The previous prime is 263745166211. The next prime is 263745166247. The reversal of 263745166216 is 612661547362.

It is a self number, because there is not a number n which added to its sum of digits gives 263745166216.

It is not an unprimeable number, because it can be changed into a prime (263745166211) 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, 567960 + ... + 921991.

It is an arithmetic number, because the mean of its divisors is an integer number (9219078000).

Almost surely, 2^263745166216 is an apocalyptic number.

It is an amenable number.

263745166216 is an abundant number, since it is smaller than the sum of its proper divisors (326275825784).

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

263745166216 is a wasteful number, since it uses less digits than its factorization.

263745166216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490102 (or 1490098 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 49.

The spelling of 263745166216 in words is "two hundred sixty-three billion, seven hundred forty-five million, one hundred sixty-six thousand, two hundred sixteen".