66090047848 has 16 divisors (see below), whose sum is σ = 135184188960. Its totient is φ = 30040930800.

The previous prime is 66090047839. The next prime is 66090047873. The reversal of 66090047848 is 84874009066.

It is a happy number.

It is a super-2 number, since 2×66090047848² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66090047795 and 66090047804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375511548 + ... + 375511723.

It is an arithmetic number, because the mean of its divisors is an integer number (8449011810).

Almost surely, 2^66090047848 is an apocalyptic number.

It is an amenable number.

66090047848 is an abundant number, since it is smaller than the sum of its proper divisors (69094141112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66090047848 is a wasteful number, since it uses less digits than its factorization.

66090047848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751023288 (or 751023284 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 66090047848 in words is "sixty-six billion, ninety million, forty-seven thousand, eight hundred forty-eight".