52666564608 has 304 divisors, whose sum is σ = 178509237760. Its totient is φ = 15033434112.

The previous prime is 52666564591. The next prime is 52666564633. The reversal of 52666564608 is 80646566625.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49544685 + ... + 49545747.

It is an arithmetic number, because the mean of its divisors is an integer number (587201440).

Almost surely, 2^52666564608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52666564608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89254618880).

52666564608 is an abundant number, since it is smaller than the sum of its proper divisors (125842673152).

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

52666564608 is an frugal number, since it uses more digits than its factorization.

52666564608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 52666564608 in words is "fifty-two billion, six hundred sixty-six million, five hundred sixty-four thousand, six hundred eight".