53220004664 has 16 divisors (see below), whose sum is σ = 103006461120. Its totient is φ = 25751615040.

The previous prime is 53220004631. The next prime is 53220004667. The reversal of 53220004664 is 46640002235.

It is a self number, because there is not a number n which added to its sum of digits gives 53220004664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53220004667) 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, 107298149 + ... + 107298644.

It is an arithmetic number, because the mean of its divisors is an integer number (6437903820).

Almost surely, 2^53220004664 is an apocalyptic number.

It is an amenable number.

53220004664 is a deficient number, since it is larger than the sum of its proper divisors (49786456456).

53220004664 is a wasteful number, since it uses less digits than its factorization.

53220004664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214596830 (or 214596826 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 53220004664 its reverse (46640002235), we get a palindrome (99860006899).

The spelling of 53220004664 in words is "fifty-three billion, two hundred twenty million, four thousand, six hundred sixty-four".