229506851669 has 4 divisors (see below), whose sum is σ = 229668136896. Its totient is φ = 229345566444.

The previous prime is 229506851647. The next prime is 229506851689. The reversal of 229506851669 is 966158605922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 966158605922 = 2 ⋅483079302961.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229506851669 is a prime.

It is a super-2 number, since 2×229506851669² (a number of 24 digits) 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 (229506851689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80640479 + ... + 80643324.

It is an arithmetic number, because the mean of its divisors is an integer number (57417034224).

Almost surely, 2^229506851669 is an apocalyptic number.

It is an amenable number.

229506851669 is a deficient number, since it is larger than the sum of its proper divisors (161285227).

229506851669 is a wasteful number, since it uses less digits than its factorization.

229506851669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161285226.

The product of its (nonzero) digits is 13996800, while the sum is 59.

The spelling of 229506851669 in words is "two hundred twenty-nine billion, five hundred six million, eight hundred fifty-one thousand, six hundred sixty-nine".