263161111056 has 40 divisors (see below), whose sum is σ = 679929142464. Its totient is φ = 87707948160.

The previous prime is 263161111049. The next prime is 263161111061. The reversal of 263161111056 is 650111161362.

263161111056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42535 + ... + 726726.

Almost surely, 2^263161111056 is an apocalyptic number.

It is an amenable number.

263161111056 is an abundant number, since it is smaller than the sum of its proper divisors (416768031408).

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

263161111056 is a wasteful number, since it uses less digits than its factorization.

263161111056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776399 (or 776393 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 263161111056 in words is "two hundred sixty-three billion, one hundred sixty-one million, one hundred eleven thousand, fifty-six".