263216632056 has 64 divisors (see below), whose sum is σ = 752369076480. Its totient is φ = 75172596480.

The previous prime is 263216632051. The next prime is 263216632067. The reversal of 263216632056 is 650236612362.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 263216631999 and 263216632017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263216632051) 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, 60516 + ... + 728076.

It is an arithmetic number, because the mean of its divisors is an integer number (11755766820).

Almost surely, 2^263216632056 is an apocalyptic number.

It is an amenable number.

263216632056 is an abundant number, since it is smaller than the sum of its proper divisors (489152444424).

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

263216632056 is a wasteful number, since it uses less digits than its factorization.

263216632056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669924 (or 669920 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 263216632056 in words is "two hundred sixty-three billion, two hundred sixteen million, six hundred thirty-two thousand, fifty-six".