52261633010661 has 48 divisors (see below), whose sum is σ = 76837532620800. Its totient is φ = 31506323577696.

The previous prime is 52261633010651. The next prime is 52261633010747. The reversal of 52261633010661 is 16601033616225.

It is not a de Polignac number, because 52261633010661 - 2⁷ = 52261633010533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52261633010651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12634086 + ... + 16252488.

It is an arithmetic number, because the mean of its divisors is an integer number (1600781929600).

Almost surely, 2^{52261633010661} is an apocalyptic number.

It is an amenable number.

52261633010661 is a deficient number, since it is larger than the sum of its proper divisors (24575899610139).

52261633010661 is a wasteful number, since it uses less digits than its factorization.

52261633010661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618950 (or 3618927 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

Adding to 52261633010661 its reverse (16601033616225), we get a palindrome (68862666626886).

The spelling of 52261633010661 in words is "fifty-two trillion, two hundred sixty-one billion, six hundred thirty-three million, ten thousand, six hundred sixty-one".