66339470248 has 8 divisors (see below), whose sum is σ = 124386506730. Its totient is φ = 33169735120.

The previous prime is 66339470227. The next prime is 66339470261. The reversal of 66339470248 is 84207493366.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 65015820324 + 1323649924 = 254982^2 + 36382^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 66339470195 and 66339470204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4146216883 + ... + 4146216898.

Almost surely, 2^66339470248 is an apocalyptic number.

It is an amenable number.

66339470248 is a deficient number, since it is larger than the sum of its proper divisors (58047036482).

66339470248 is a wasteful number, since it uses less digits than its factorization.

66339470248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8292433787 (or 8292433783 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 66339470248 in words is "sixty-six billion, three hundred thirty-nine million, four hundred seventy thousand, two hundred forty-eight".