180853796566 has 8 divisors (see below), whose sum is σ = 271653847920. Its totient is φ = 90302513928.

The previous prime is 180853796561. The next prime is 180853796567. The reversal of 180853796566 is 665697358081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×180853796566² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 180853796498 and 180853796507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180853796561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62190361 + ... + 62193268.

It is an arithmetic number, because the mean of its divisors is an integer number (33956730990).

Almost surely, 2^180853796566 is an apocalyptic number.

180853796566 is a deficient number, since it is larger than the sum of its proper divisors (90800051354).

180853796566 is a wasteful number, since it uses less digits than its factorization.

180853796566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124384358.

The product of its (nonzero) digits is 65318400, while the sum is 64.

The spelling of 180853796566 in words is "one hundred eighty billion, eight hundred fifty-three million, seven hundred ninety-six thousand, five hundred sixty-six".