235166643223 has 2 divisors, whose sum is σ = 235166643224. Its totient is φ = 235166643222.

The previous prime is 235166643199. The next prime is 235166643227. The reversal of 235166643223 is 322346661532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235166643223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 235166643223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235166643227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117583321611 + 117583321612.

It is an arithmetic number, because the mean of its divisors is an integer number (117583321612).

Almost surely, 2^235166643223 is an apocalyptic number.

235166643223 is a deficient number, since it is larger than the sum of its proper divisors (1).

235166643223 is an equidigital number, since it uses as much as digits as its factorization.

235166643223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 43.

The spelling of 235166643223 in words is "two hundred thirty-five billion, one hundred sixty-six million, six hundred forty-three thousand, two hundred twenty-three".