22780341661 has 32 divisors (see below), whose sum is σ = 29405675520. Its totient is φ = 17126726400.

The previous prime is 22780341659. The next prime is 22780341671. The reversal of 22780341661 is 16614308722.

It is not a de Polignac number, because 22780341661 - 2¹ = 22780341659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22780341671) 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 in 31 ways as a sum of consecutive naturals, for example, 790260 + ... + 818578.

It is an arithmetic number, because the mean of its divisors is an integer number (918927360).

Almost surely, 2^22780341661 is an apocalyptic number.

It is an amenable number.

22780341661 is a deficient number, since it is larger than the sum of its proper divisors (6625333859).

22780341661 is a wasteful number, since it uses less digits than its factorization.

22780341661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28705.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 22780341661 in words is "twenty-two billion, seven hundred eighty million, three hundred forty-one thousand, six hundred sixty-one".