66224165052 has 24 divisors (see below), whose sum is σ = 161241446016. Its totient is φ = 21114951088.

The previous prime is 66224165041. The next prime is 66224165069. The reversal of 66224165052 is 25056142266.

66224165052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 66224165052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119971038 + ... + 119971589.

It is an arithmetic number, because the mean of its divisors is an integer number (6718393584).

Almost surely, 2^66224165052 is an apocalyptic number.

It is an amenable number.

66224165052 is an abundant number, since it is smaller than the sum of its proper divisors (95017280964).

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

66224165052 is a wasteful number, since it uses less digits than its factorization.

66224165052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239942657 (or 239942655 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 66224165052 in words is "sixty-six billion, two hundred twenty-four million, one hundred sixty-five thousand, fifty-two".