180196666956 has 96 divisors (see below), whose sum is σ = 483466959360. Its totient is φ = 57995870400.

The previous prime is 180196666933. The next prime is 180196666973. The reversal of 180196666956 is 659666691081.

It is a junction number, because it is equal to n+sod(n) for n = 180196666893 and 180196666902.

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, 351361 + ... + 695591.

It is an arithmetic number, because the mean of its divisors is an integer number (5036114160).

Almost surely, 2^180196666956 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 180196666956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241733479680).

180196666956 is an abundant number, since it is smaller than the sum of its proper divisors (303270292404).

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

180196666956 is a wasteful number, since it uses less digits than its factorization.

180196666956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344412 (or 344404 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The spelling of 180196666956 in words is "one hundred eighty billion, one hundred ninety-six million, six hundred sixty-six thousand, nine hundred fifty-six".