180686523146352 has 160 divisors (see below), whose sum is σ = 481687848671232. Its totient is φ = 58320186043392.

The previous prime is 180686523146341. The next prime is 180686523146377. The reversal of 180686523146352 is 253641325686081.

It is a super-2 number, since 2×180686523146352² (a number of 29 digits) contains 22 as substring.

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, 1309661758 + ... + 1309799714.

Almost surely, 2^{180686523146352} is an apocalyptic number.

180686523146352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180686523146352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240843924335616).

180686523146352 is an abundant number, since it is smaller than the sum of its proper divisors (301001325524880).

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

180686523146352 is a wasteful number, since it uses less digits than its factorization.

180686523146352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141535 (or 141529 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 60.

The spelling of 180686523146352 in words is "one hundred eighty trillion, six hundred eighty-six billion, five hundred twenty-three million, one hundred forty-six thousand, three hundred fifty-two".