11016720257 has 2 divisors, whose sum is σ = 11016720258. Its totient is φ = 11016720256.

The previous prime is 11016720233. The next prime is 11016720269. The reversal of 11016720257 is 75202761011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10716183361 + 300536896 = 103519^2 + 17336^2 .

It is a cyclic number.

It is not a de Polignac number, because 11016720257 - 2²⁸ = 10748284801 is a prime.

It is not a weakly prime, because it can be changed into another prime (11016720457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5508360128 + 5508360129.

It is an arithmetic number, because the mean of its divisors is an integer number (5508360129).

Almost surely, 2^11016720257 is an apocalyptic number.

It is an amenable number.

11016720257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11016720257 is an equidigital number, since it uses as much as digits as its factorization.

11016720257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 32.

The spelling of 11016720257 in words is "eleven billion, sixteen million, seven hundred twenty thousand, two hundred fifty-seven".