263216632055 has 64 divisors (see below), whose sum is σ = 354746044800. Its totient is φ = 186220339200.

The previous prime is 263216632051. The next prime is 263216632067. The reversal of 263216632055 is 550236612362.

It is not a de Polignac number, because 263216632055 - 2² = 263216632051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

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 63 ways as a sum of consecutive naturals, for example, 154923596 + ... + 154925294.

It is an arithmetic number, because the mean of its divisors is an integer number (5542906950).

Almost surely, 2^263216632055 is an apocalyptic number.

263216632055 is a deficient number, since it is larger than the sum of its proper divisors (91529412745).

263216632055 is a wasteful number, since it uses less digits than its factorization.

263216632055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 263216632055 in words is "two hundred sixty-three billion, two hundred sixteen million, six hundred thirty-two thousand, fifty-five".