66275107672 has 16 divisors (see below), whose sum is σ = 124301212560. Its totient is φ = 33128117664.

The previous prime is 66275107643. The next prime is 66275107741. The reversal of 66275107672 is 27670157266.

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, 1149628 + ... + 1205899.

It is an arithmetic number, because the mean of its divisors is an integer number (7768825785).

Almost surely, 2^66275107672 is an apocalyptic number.

It is an amenable number.

66275107672 is a deficient number, since it is larger than the sum of its proper divisors (58026104888).

66275107672 is a wasteful number, since it uses less digits than its factorization.

66275107672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359050 (or 2359046 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 66275107672 in words is "sixty-six billion, two hundred seventy-five million, one hundred seven thousand, six hundred seventy-two".