52221716651564 has 12 divisors (see below), whose sum is σ = 91508728061184. Its totient is φ = 26076365776944.

The previous prime is 52221716651561. The next prime is 52221716651569. The reversal of 52221716651564 is 46515661712225.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (52221716651561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8623133804 + ... + 8623139859.

It is an arithmetic number, because the mean of its divisors is an integer number (7625727338432).

Almost surely, 2^{52221716651564} is an apocalyptic number.

It is an amenable number.

52221716651564 is a deficient number, since it is larger than the sum of its proper divisors (39287011409620).

52221716651564 is a wasteful number, since it uses less digits than its factorization.

52221716651564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17246274424 (or 17246274422 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 53.

The spelling of 52221716651564 in words is "fifty-two trillion, two hundred twenty-one billion, seven hundred sixteen million, six hundred fifty-one thousand, five hundred sixty-four".