181057970228 has 24 divisors (see below), whose sum is σ = 317369858400. Its totient is φ = 90380988128.

The previous prime is 181057970209. The next prime is 181057970251. The reversal of 181057970228 is 822079750181.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6585326 + ... + 6612762.

It is an arithmetic number, because the mean of its divisors is an integer number (13223744100).

Almost surely, 2^181057970228 is an apocalyptic number.

It is an amenable number.

181057970228 is a deficient number, since it is larger than the sum of its proper divisors (136311888172).

181057970228 is a wasteful number, since it uses less digits than its factorization.

181057970228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30079 (or 30077 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 181057970228 in words is "one hundred eighty-one billion, fifty-seven million, nine hundred seventy thousand, two hundred twenty-eight".