181147276996 has 135 divisors (see below), whose sum is σ = 382406673453. Its totient is φ = 75078309600.

The previous prime is 181147276993. The next prime is 181147277023. The reversal of 181147276996 is 699672741181.

The square root of 181147276996 is 425614.

It is a perfect power (a square), and thus also a powerful number.

181147276996 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 174044158596 + 7103118400 = 417186^2 + 84280^2 .

It is not an unprimeable number, because it can be changed into a prime (181147276993) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1793537346 + ... + 1793537446.

Almost surely, 2^181147276996 is an apocalyptic number.

181147276996 is the 425614-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181147276996

181147276996 is an abundant number, since it is smaller than the sum of its proper divisors (201259396457).

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

181147276996 is an frugal number, since it uses more digits than its factorization.

181147276996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 153 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 61.

The spelling of 181147276996 in words is "one hundred eighty-one billion, one hundred forty-seven million, two hundred seventy-six thousand, nine hundred ninety-six".