11141025661 has 2 divisors, whose sum is σ = 11141025662. Its totient is φ = 11141025660.

The previous prime is 11141025631. The next prime is 11141025673. The reversal of 11141025661 is 16652014111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11085984100 + 55041561 = 105290^2 + 7419^2 .

It is a cyclic number.

It is not a de Polignac number, because 11141025661 - 2²¹ = 11138928509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11141025601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5570512830 + 5570512831.

It is an arithmetic number, because the mean of its divisors is an integer number (5570512831).

Almost surely, 2^11141025661 is an apocalyptic number.

It is an amenable number.

11141025661 is a deficient number, since it is larger than the sum of its proper divisors (1).

11141025661 is an equidigital number, since it uses as much as digits as its factorization.

11141025661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

Adding to 11141025661 its reverse (16652014111), we get a palindrome (27793039772).

The spelling of 11141025661 in words is "eleven billion, one hundred forty-one million, twenty-five thousand, six hundred sixty-one".