66075311577628 has 12 divisors (see below), whose sum is σ = 118452082950432. Its totient is φ = 32231859306080.

The previous prime is 66075311577571. The next prime is 66075311577631. The reversal of 66075311577628 is 82677511357066.

66075311577628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 66075311577628.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 201449120500 + ... + 201449120827.

It is an arithmetic number, because the mean of its divisors is an integer number (9871006912536).

Almost surely, 2^{66075311577628} is an apocalyptic number.

It is an amenable number.

66075311577628 is a deficient number, since it is larger than the sum of its proper divisors (52376771372804).

66075311577628 is a wasteful number, since it uses less digits than its factorization.

66075311577628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402898241372 (or 402898241370 counting only the distinct ones).

The product of its (nonzero) digits is 88905600, while the sum is 64.

The spelling of 66075311577628 in words is "sixty-six trillion, seventy-five billion, three hundred eleven million, five hundred seventy-seven thousand, six hundred twenty-eight".