66002086648 has 16 divisors (see below), whose sum is σ = 123757300080. Its totient is φ = 33000139968.

The previous prime is 66002086573. The next prime is 66002086669. The reversal of 66002086648 is 84668020066.

It is a junction number, because it is equal to n+sod(n) for n = 66002086598 and 66002086607.

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, 276661 + ... + 456667.

It is an arithmetic number, because the mean of its divisors is an integer number (7734831255).

Almost surely, 2^66002086648 is an apocalyptic number.

It is an amenable number.

66002086648 is a deficient number, since it is larger than the sum of its proper divisors (57755213432).

66002086648 is a wasteful number, since it uses less digits than its factorization.

66002086648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225846 (or 225842 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 66002086648 in words is "sixty-six billion, two million, eighty-six thousand, six hundred forty-eight".