66225300354666 has 48 divisors (see below), whose sum is σ = 146946129529056. Its totient is φ = 21543949855008.

The previous prime is 66225300354649. The next prime is 66225300354749. The reversal of 66225300354666 is 66645300352266.

66225300354666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34330060 + ... + 36207783.

It is an arithmetic number, because the mean of its divisors is an integer number (3061377698522).

Almost surely, 2^{66225300354666} is an apocalyptic number.

66225300354666 is an abundant number, since it is smaller than the sum of its proper divisors (80720829174390).

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

66225300354666 is a wasteful number, since it uses less digits than its factorization.

66225300354666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70539107 (or 70539104 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 54.

The spelling of 66225300354666 in words is "sixty-six trillion, two hundred twenty-five billion, three hundred million, three hundred fifty-four thousand, six hundred sixty-six".