53221235366 has 8 divisors (see below), whose sum is σ = 85972764864. Its totient is φ = 24563647080.

The previous prime is 53221235363. The next prime is 53221235371. The reversal of 53221235366 is 66353212235.

53221235366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53221235363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023485270 + ... + 1023485321.

It is an arithmetic number, because the mean of its divisors is an integer number (10746595608).

Almost surely, 2^53221235366 is an apocalyptic number.

53221235366 is a deficient number, since it is larger than the sum of its proper divisors (32751529498).

53221235366 is a wasteful number, since it uses less digits than its factorization.

53221235366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046970606.

The product of its digits is 194400, while the sum is 38.

The spelling of 53221235366 in words is "fifty-three billion, two hundred twenty-one million, two hundred thirty-five thousand, three hundred sixty-six".