180345918050 has 24 divisors (see below), whose sum is σ = 335455141476. Its totient is φ = 72135843840.

The previous prime is 180345918047. The next prime is 180345918119. The reversal of 180345918050 is 50819543081.

It can be written as a sum of positive squares in 6 ways, for example, as 49801724569 + 130544193481 = 223163^2 + 361309^2 .

It is a junction number, because it is equal to n+sod(n) for n = 180345917992 and 180345918010.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2147654 + ... + 2230046.

Almost surely, 2^180345918050 is an apocalyptic number.

180345918050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180345918050 is a deficient number, since it is larger than the sum of its proper divisors (155109223426).

180345918050 is a wasteful number, since it uses less digits than its factorization.

180345918050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126182 (or 126177 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 44.

The spelling of 180345918050 in words is "one hundred eighty billion, three hundred forty-five million, nine hundred eighteen thousand, fifty".