223261657061 has 2 divisors, whose sum is σ = 223261657062. Its totient is φ = 223261657060.

The previous prime is 223261657027. The next prime is 223261657153. The reversal of 223261657061 is 160756162322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164770234561 + 58491422500 = 405919^2 + 241850^2 .

It is a cyclic number.

It is not a de Polignac number, because 223261657061 - 2²⁶ = 223194548197 is a prime.

It is a super-3 number, since 3×223261657061³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223261657261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111630828530 + 111630828531.

It is an arithmetic number, because the mean of its divisors is an integer number (111630828531).

Almost surely, 2^223261657061 is an apocalyptic number.

It is an amenable number.

223261657061 is a deficient number, since it is larger than the sum of its proper divisors (1).

223261657061 is an equidigital number, since it uses as much as digits as its factorization.

223261657061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 223261657061 in words is "two hundred twenty-three billion, two hundred sixty-one million, six hundred fifty-seven thousand, sixty-one".