66588294196 has 12 divisors (see below), whose sum is σ = 116537349348. Its totient is φ = 33291908672.

The previous prime is 66588294193. The next prime is 66588294277. The reversal of 66588294196 is 69149288566.

66588294196 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 6898963600 + 59689330596 = 83060^2 + 244314^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66588294193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491761 + ... + 612376.

It is an arithmetic number, because the mean of its divisors is an integer number (9711445779).

Almost surely, 2^66588294196 is an apocalyptic number.

It is an amenable number.

66588294196 is a deficient number, since it is larger than the sum of its proper divisors (49949055152).

66588294196 is a wasteful number, since it uses less digits than its factorization.

66588294196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119218 (or 1119216 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 64.

The spelling of 66588294196 in words is "sixty-six billion, five hundred eighty-eight million, two hundred ninety-four thousand, one hundred ninety-six".