918216041256 has 64 divisors (see below), whose sum is σ = 2582886240000. Its totient is φ = 302197678848.

The previous prime is 918216041243. The next prime is 918216041257. The reversal of 918216041256 is 652140612819.

918216041256 is a `hidden beast` number, since 9 + 1 + 8 + 21 + 604 + 12 + 5 + 6 = 666.

918216041256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (918216041257) 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, 26888001 + ... + 26922128.

It is an arithmetic number, because the mean of its divisors is an integer number (40357597500).

Almost surely, 2^918216041256 is an apocalyptic number.

It is an amenable number.

918216041256 is an abundant number, since it is smaller than the sum of its proper divisors (1664670198744).

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

918216041256 is a wasteful number, since it uses less digits than its factorization.

918216041256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53810223 (or 53810213 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 918216041256 in words is "nine hundred eighteen billion, two hundred sixteen million, forty-one thousand, two hundred fifty-six".