11071663025 has 6 divisors (see below), whose sum is σ = 13728862182. Its totient is φ = 8857330400.

The previous prime is 11071663021. The next prime is 11071663037. The reversal of 11071663025 is 52036617011.

It can be written as a sum of positive squares in 3 ways, for example, as 2793756736 + 8277906289 = 52856^2 + 90983^2 .

It is not a de Polignac number, because 11071663025 - 2² = 11071663021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11071662982 and 11071663000.

It is not an unprimeable number, because it can be changed into a prime (11071663021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221433236 + ... + 221433285.

It is an arithmetic number, because the mean of its divisors is an integer number (2288143697).

Almost surely, 2^11071663025 is an apocalyptic number.

It is an amenable number.

11071663025 is a deficient number, since it is larger than the sum of its proper divisors (2657199157).

11071663025 is an equidigital number, since it uses as much as digits as its factorization.

11071663025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442866531 (or 442866526 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The spelling of 11071663025 in words is "eleven billion, seventy-one million, six hundred sixty-three thousand, twenty-five".