618845223150 has 1152 divisors, whose sum is σ = 2286367948800. Its totient is φ = 121466822400.

The previous prime is 618845223131. The next prime is 618845223163. The reversal of 618845223150 is 51322548816.

618845223150 is a `hidden beast` number, since 6 + 18 + 84 + 522 + 31 + 5 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 618845223096 and 618845223105.

It is a congruent number.

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 575 ways as a sum of consecutive naturals, for example, 1723802671 + ... + 1723803029.

It is an arithmetic number, because the mean of its divisors is an integer number (1984694400).

Almost surely, 2^618845223150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618845223150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1143183974400).

618845223150 is an abundant number, since it is smaller than the sum of its proper divisors (1667522725650).

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

618845223150 is a wasteful number, since it uses less digits than its factorization.

618845223150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 618845223150 in words is "six hundred eighteen billion, eight hundred forty-five million, two hundred twenty-three thousand, one hundred fifty".