229661129937 has 16 divisors (see below), whose sum is σ = 319544202240. Its totient is φ = 146443391952.

The previous prime is 229661129933. The next prime is 229661129947. The reversal of 229661129937 is 739921166922.

It is not a de Polignac number, because 229661129937 - 2² = 229661129933 is a prime.

It is not an unprimeable number, because it can be changed into a prime (229661129933) 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 15 ways as a sum of consecutive naturals, for example, 1577958 + ... + 1717344.

It is an arithmetic number, because the mean of its divisors is an integer number (19971512640).

Almost surely, 2^229661129937 is an apocalyptic number.

It is an amenable number.

229661129937 is a deficient number, since it is larger than the sum of its proper divisors (89883072303).

229661129937 is a wasteful number, since it uses less digits than its factorization.

229661129937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163292.

The product of its digits is 4408992, while the sum is 57.

The spelling of 229661129937 in words is "two hundred twenty-nine billion, six hundred sixty-one million, one hundred twenty-nine thousand, nine hundred thirty-seven".