181169484480 has 672 divisors, whose sum is σ = 655517266560. Its totient is φ = 45891256320.

The previous prime is 181169484467. The next prime is 181169484481. The reversal of 181169484480 is 84484961181.

181169484480 is a `hidden beast` number, since 1 + 8 + 116 + 9 + 48 + 4 + 480 = 666.

It is not an unprimeable number, because it can be changed into a prime (181169484481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 791133006 + ... + 791133234.

Almost surely, 2^181169484480 is an apocalyptic number.

181169484480 is a gapful number since it is divisible by the number (10) 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 181169484480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327758633280).

181169484480 is an abundant number, since it is smaller than the sum of its proper divisors (474347782080).

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

181169484480 is a wasteful number, since it uses less digits than its factorization.

181169484480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The spelling of 181169484480 in words is "one hundred eighty-one billion, one hundred sixty-nine million, four hundred eighty-four thousand, four hundred eighty".