618297016218 has 128 divisors (see below), whose sum is σ = 1560121344000. Its totient is φ = 159276756672.

The previous prime is 618297016201. The next prime is 618297016283. The reversal of 618297016218 is 812610792816.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3567805 + ... + 3737087.

It is an arithmetic number, because the mean of its divisors is an integer number (12188448000).

Almost surely, 2^618297016218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618297016218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780060672000).

618297016218 is an abundant number, since it is smaller than the sum of its proper divisors (941824327782).

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

618297016218 is a wasteful number, since it uses less digits than its factorization.

618297016218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169536.

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 618297016218 in words is "six hundred eighteen billion, two hundred ninety-seven million, sixteen thousand, two hundred eighteen".