2225441051661 has 16 divisors (see below), whose sum is σ = 3093005741760. Its totient is φ = 1421532927360.

The previous prime is 2225441051609. The next prime is 2225441051689. The reversal of 2225441051661 is 1661501445222.

It is not a de Polignac number, because 2225441051661 - 2⁶ = 2225441051597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225441055661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97621360 + ... + 97644153.

It is an arithmetic number, because the mean of its divisors is an integer number (193312858860).

Almost surely, 2^{2225441051661} is an apocalyptic number.

It is an amenable number.

2225441051661 is a deficient number, since it is larger than the sum of its proper divisors (867564690099).

2225441051661 is a wasteful number, since it uses less digits than its factorization.

2225441051661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195265676.

The product of its (nonzero) digits is 115200, while the sum is 39.

Adding to 2225441051661 its reverse (1661501445222), we get a palindrome (3886942496883).

The spelling of 2225441051661 in words is "two trillion, two hundred twenty-five billion, four hundred forty-one million, fifty-one thousand, six hundred sixty-one".