229320661 has 8 divisors (see below), whose sum is σ = 242277120. Its totient is φ = 216700848.

The previous prime is 229320629. The next prime is 229320683. The reversal of 229320661 is 166023922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 229320661 - 2⁵ = 229320629 is a prime.

It is a super-2 number, since 2×229320661² = 105175931122953842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229320691) 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 7 ways as a sum of consecutive naturals, for example, 82761 + ... + 85486.

It is an arithmetic number, because the mean of its divisors is an integer number (30284640).

Almost surely, 2^229320661 is an apocalyptic number.

It is an amenable number.

229320661 is a deficient number, since it is larger than the sum of its proper divisors (12956459).

229320661 is a wasteful number, since it uses less digits than its factorization.

229320661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168323.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 229320661 is about 15143.3371817443. The cubic root of 229320661 is about 612.0887466173.

The spelling of 229320661 in words is "two hundred twenty-nine million, three hundred twenty thousand, six hundred sixty-one".