223006701661 has 8 divisors (see below), whose sum is σ = 229043480760. Its totient is φ = 216970426368.

The previous prime is 223006701629. The next prime is 223006701683. The reversal of 223006701661 is 166107600322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7519491225 + 215487210436 = 86715^2 + 464206^2 .

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 223006701661 - 2⁵ = 223006701629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223006701601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878205 + ... + 1103293.

It is an arithmetic number, because the mean of its divisors is an integer number (28630435095).

Almost surely, 2^223006701661 is an apocalyptic number.

It is an amenable number.

223006701661 is a deficient number, since it is larger than the sum of its proper divisors (6036779099).

223006701661 is a wasteful number, since it uses less digits than its factorization.

223006701661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251903.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 223006701661 in words is "two hundred twenty-three billion, six million, seven hundred one thousand, six hundred sixty-one".