223545667697 has 12 divisors (see below), whose sum is σ = 249743616948. Its totient is φ = 199891797600.

The previous prime is 223545667687. The next prime is 223545667717. The reversal of 223545667697 is 796766545322.

It can be written as a sum of positive squares in 2 ways, for example, as 47384147041 + 176161520656 = 217679^2 + 419716^2 .

It is not a de Polignac number, because 223545667697 - 2⁶ = 223545667633 is a prime.

It is a super-3 number, since 3×223545667697³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223545667687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15135938 + ... + 15150699.

It is an arithmetic number, because the mean of its divisors is an integer number (20811968079).

Almost surely, 2^223545667697 is an apocalyptic number.

It is an amenable number.

223545667697 is a deficient number, since it is larger than the sum of its proper divisors (26197949251).

223545667697 is a wasteful number, since it uses less digits than its factorization.

223545667697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30286720 (or 30286709 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 62.

The spelling of 223545667697 in words is "two hundred twenty-three billion, five hundred forty-five million, six hundred sixty-seven thousand, six hundred ninety-seven".