352544756607661 has 8 divisors (see below), whose sum is σ = 353179653102360. Its totient is φ = 351909867144768.

The previous prime is 352544756607629. The next prime is 352544756607683. The reversal of 352544756607661 is 166706657445253.

It can be written as a sum of positive squares in 4 ways, for example, as 3199873414761 + 349344883192900 = 1788819^2 + 18690770^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 352544756607661 - 2⁵ = 352544756607629 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 (352544756607161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104366355 + ... + 107691343.

It is an arithmetic number, because the mean of its divisors is an integer number (44147456637795).

Almost surely, 2^{352544756607661} is an apocalyptic number.

It is an amenable number.

352544756607661 is a deficient number, since it is larger than the sum of its proper divisors (634896494699).

352544756607661 is a wasteful number, since it uses less digits than its factorization.

352544756607661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515903.

The product of its (nonzero) digits is 762048000, while the sum is 67.

The spelling of 352544756607661 in words is "three hundred fifty-two trillion, five hundred forty-four billion, seven hundred fifty-six million, six hundred seven thousand, six hundred sixty-one".