66476249852 has 12 divisors (see below), whose sum is σ = 117462888816. Its totient is φ = 32915424480.

The previous prime is 66476249831. The next prime is 66476249881. The reversal of 66476249852 is 25894267466.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66476249791 and 66476249800.

It is a congruent number.

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, 80674649 + ... + 80675472.

It is an arithmetic number, because the mean of its divisors is an integer number (9788574068).

Almost surely, 2^66476249852 is an apocalyptic number.

It is an amenable number.

66476249852 is a deficient number, since it is larger than the sum of its proper divisors (50986638964).

66476249852 is a wasteful number, since it uses less digits than its factorization.

66476249852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161350228 (or 161350226 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 59.

The spelling of 66476249852 in words is "sixty-six billion, four hundred seventy-six million, two hundred forty-nine thousand, eight hundred fifty-two".