66011001207625 has 32 divisors (see below), whose sum is σ = 83782794610944. Its totient is φ = 51914969344000.

The previous prime is 66011001207559. The next prime is 66011001207643. The reversal of 66011001207625 is 52670210011066.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-66011001207625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7637752 + ... + 13797001.

It is an arithmetic number, because the mean of its divisors is an integer number (2618212331592).

Almost surely, 2^{66011001207625} is an apocalyptic number.

It is an amenable number.

66011001207625 is a deficient number, since it is larger than the sum of its proper divisors (17771793403319).

66011001207625 is a wasteful number, since it uses less digits than its factorization.

66011001207625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21435186 (or 21435176 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 66011001207625 in words is "sixty-six trillion, eleven billion, one million, two hundred seven thousand, six hundred twenty-five".