66105628048 has 20 divisors (see below), whose sum is σ = 128103623388. Its totient is φ = 33046628480.

The previous prime is 66105628037. The next prime is 66105628063. The reversal of 66105628048 is 84082650166.

66105628048 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 25764102144 + 40341525904 = 160512^2 + 200852^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66105627989 and 66105628007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297811 + ... + 470002.

Almost surely, 2^66105628048 is an apocalyptic number.

It is an amenable number.

66105628048 is a deficient number, since it is larger than the sum of its proper divisors (61997995340).

66105628048 is a wasteful number, since it uses less digits than its factorization.

66105628048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773202 (or 773196 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 66105628048 in words is "sixty-six billion, one hundred five million, six hundred twenty-eight thousand, forty-eight".