229671936081 has 45 divisors (see below), whose sum is σ = 399157371129. Its totient is φ = 131223853656.

The previous prime is 229671936041. The next prime is 229671936191. The reversal of 229671936081 is 180639176922.

The square root of 229671936081 is 479241.

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

229671936081 is a `hidden beast` number, since 2 + 29 + 6 + 7 + 1 + 9 + 3 + 608 + 1 = 666.

It is not a de Polignac number, because 229671936081 - 2²³ = 229663547473 is a prime.

It is a super-2 number, since 2×229671936081² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (229671936041) 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 44 ways as a sum of consecutive naturals, for example, 30188380 + ... + 30195986.

Almost surely, 2^229671936081 is an apocalyptic number.

229671936081 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

229671936081 is the 479241-st square number.

229671936081 is the 239621-st centered octagonal number.

It is an amenable number.

229671936081 is a deficient number, since it is larger than the sum of its proper divisors (169485435048).

229671936081 is an frugal number, since it uses more digits than its factorization.

229671936081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15240 (or 7617 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 229671936081 in words is "two hundred twenty-nine billion, six hundred seventy-one million, nine hundred thirty-six thousand, eighty-one".