22273706657 has 2 divisors, whose sum is σ = 22273706658. Its totient is φ = 22273706656.

The previous prime is 22273706599. The next prime is 22273706723. The reversal of 22273706657 is 75660737222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16394497681 + 5879208976 = 128041^2 + 76676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22273706657 is a prime.

It is a super-2 number, since 2×22273706657² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22273706857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11136853328 + 11136853329.

It is an arithmetic number, because the mean of its divisors is an integer number (11136853329).

Almost surely, 2^22273706657 is an apocalyptic number.

It is an amenable number.

22273706657 is a deficient number, since it is larger than the sum of its proper divisors (1).

22273706657 is an equidigital number, since it uses as much as digits as its factorization.

22273706657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 47.

The spelling of 22273706657 in words is "twenty-two billion, two hundred seventy-three million, seven hundred six thousand, six hundred fifty-seven".