66648850448 has 20 divisors (see below), whose sum is σ = 129243217488. Its totient is φ = 33295762080.

The previous prime is 66648850361. The next prime is 66648850459. The reversal of 66648850448 is 84405884666.

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, 1772258 + ... + 1809473.

Almost surely, 2^66648850448 is an apocalyptic number.

It is an amenable number.

66648850448 is a deficient number, since it is larger than the sum of its proper divisors (62594367040).

66648850448 is a wasteful number, since it uses less digits than its factorization.

66648850448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582902 (or 3582896 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 59.

The spelling of 66648850448 in words is "sixty-six billion, six hundred forty-eight million, eight hundred fifty thousand, four hundred forty-eight".