264656032243 has 2 divisors, whose sum is σ = 264656032244. Its totient is φ = 264656032242.

The previous prime is 264656032217. The next prime is 264656032261. The reversal of 264656032243 is 342230656462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264656032243 - 2²⁵ = 264622477811 is a prime.

It is a super-2 number, since 2×264656032243² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 264656032243.

It is not a weakly prime, because it can be changed into another prime (264656032843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132328016121 + 132328016122.

It is an arithmetic number, because the mean of its divisors is an integer number (132328016122).

Almost surely, 2^264656032243 is an apocalyptic number.

264656032243 is a deficient number, since it is larger than the sum of its proper divisors (1).

264656032243 is an equidigital number, since it uses as much as digits as its factorization.

264656032243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 43.

The spelling of 264656032243 in words is "two hundred sixty-four billion, six hundred fifty-six million, thirty-two thousand, two hundred forty-three".