52644566340 has 36 divisors (see below), whose sum is σ = 159688518444. Its totient is φ = 14038550976.

The previous prime is 52644566311. The next prime is 52644566413. The reversal of 52644566340 is 4366544625.

It is a happy number.

52644566340 is a `hidden beast` number, since 5 + 2 + 6 + 4 + 4 + 5 + 6 + 634 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35429027076 + 17215539264 = 188226^2 + 131208^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146234727 + ... + 146235086.

It is an arithmetic number, because the mean of its divisors is an integer number (4435792179).

Almost surely, 2^52644566340 is an apocalyptic number.

It is an amenable number.

52644566340 is an abundant number, since it is smaller than the sum of its proper divisors (107043952104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52644566340 is a wasteful number, since it uses less digits than its factorization.

52644566340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292469828 (or 292469823 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

The spelling of 52644566340 in words is "fifty-two billion, six hundred forty-four million, five hundred sixty-six thousand, three hundred forty".