66150352016 has 60 divisors (see below), whose sum is σ = 149286655980. Its totient is φ = 28313026560.

The previous prime is 66150352001. The next prime is 66150352057. The reversal of 66150352016 is 61025305166.

66150352016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42434352016 + 23716000000 = 205996^2 + 154000^2 .

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, 548036 + ... + 657756.

It is an arithmetic number, because the mean of its divisors is an integer number (2488110933).

Almost surely, 2^66150352016 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 66150352016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74643327990).

66150352016 is an abundant number, since it is smaller than the sum of its proper divisors (83136303964).

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

66150352016 is a wasteful number, since it uses less digits than its factorization.

66150352016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110512 (or 110499 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 66150352016 in words is "sixty-six billion, one hundred fifty million, three hundred fifty-two thousand, sixteen".