618665182350 has 288 divisors, whose sum is σ = 1696647345120. Its totient is φ = 148496302080.

The previous prime is 618665182319. The next prime is 618665182397. The reversal of 618665182350 is 53281566816.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 618665182293 and 618665182302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1428787734 + ... + 1428788166.

It is an arithmetic number, because the mean of its divisors is an integer number (5891136615).

Almost surely, 2^618665182350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618665182350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848323672560).

618665182350 is an abundant number, since it is smaller than the sum of its proper divisors (1077982162770).

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

618665182350 is a wasteful number, since it uses less digits than its factorization.

618665182350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 618665182350 in words is "six hundred eighteen billion, six hundred sixty-five million, one hundred eighty-two thousand, three hundred fifty".