618531162336 has 192 divisors, whose sum is σ = 1906319923200. Its totient is φ = 194715975168.

The previous prime is 618531162299. The next prime is 618531162343. The reversal of 618531162336 is 633261135816.

618531162336 is a `hidden beast` number, since 6 + 1 + 8 + 5 + 3 + 11 + 623 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 618531162291 and 618531162300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1372890 + ... + 1766886.

It is an arithmetic number, because the mean of its divisors is an integer number (9928749600).

Almost surely, 2^618531162336 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 618531162336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953159961600).

618531162336 is an abundant number, since it is smaller than the sum of its proper divisors (1287788760864).

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

618531162336 is a wasteful number, since it uses less digits than its factorization.

618531162336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394118 (or 394104 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The spelling of 618531162336 in words is "six hundred eighteen billion, five hundred thirty-one million, one hundred sixty-two thousand, three hundred thirty-six".