48951569666 has 32 divisors (see below), whose sum is σ = 79488468720. Its totient is φ = 22601150208.

The previous prime is 48951569633. The next prime is 48951569687. The reversal of 48951569666 is 66696515984.

It can be written as a sum of positive squares in 8 ways, for example, as 44952904441 + 3998665225 = 212021^2 + 63235^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473780 + ... + 567776.

Almost surely, 2^48951569666 is an apocalyptic number.

48951569666 is a deficient number, since it is larger than the sum of its proper divisors (30536899054).

48951569666 is an equidigital number, since it uses as much as digits as its factorization.

48951569666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94103 (or 94069 counting only the distinct ones).

The product of its digits is 83980800, while the sum is 65.

The spelling of 48951569666 in words is "forty-eight billion, nine hundred fifty-one million, five hundred sixty-nine thousand, six hundred sixty-six".