264022244561 has 2 divisors, whose sum is σ = 264022244562. Its totient is φ = 264022244560.

The previous prime is 264022244413. The next prime is 264022244567. The reversal of 264022244561 is 165442220462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261677263936 + 2344980625 = 511544^2 + 48425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264022244561 is a prime.

It is a super-4 number, since 4×264022244561⁴ (a number of 47 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (264022244567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132011122280 + 132011122281.

It is an arithmetic number, because the mean of its divisors is an integer number (132011122281).

Almost surely, 2^264022244561 is an apocalyptic number.

It is an amenable number.

264022244561 is a deficient number, since it is larger than the sum of its proper divisors (1).

264022244561 is an equidigital number, since it uses as much as digits as its factorization.

264022244561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 38.

The spelling of 264022244561 in words is "two hundred sixty-four billion, twenty-two million, two hundred forty-four thousand, five hundred sixty-one".