918617647168 has 224 divisors, whose sum is σ = 2121706460160. Its totient is φ = 391353016320.

The previous prime is 918617647159. The next prime is 918617647183. The reversal of 918617647168 is 861746716819.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62073946 + ... + 62088742.

It is an arithmetic number, because the mean of its divisors is an integer number (9471903840).

Almost surely, 2^918617647168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 918617647168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1060853230080).

918617647168 is an abundant number, since it is smaller than the sum of its proper divisors (1203088812992).

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

918617647168 is a wasteful number, since it uses less digits than its factorization.

918617647168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14965 (or 14955 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 64.

The spelling of 918617647168 in words is "nine hundred eighteen billion, six hundred seventeen million, six hundred forty-seven thousand, one hundred sixty-eight".