66600131263325 has 96 divisors (see below), whose sum is σ = 93800248971264. Its totient is φ = 46470340800000.

The previous prime is 66600131263313. The next prime is 66600131263343. The reversal of 66600131263325 is 52336213100666.

It is not a de Polignac number, because 66600131263325 - 2¹⁸ = 66600131001181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1153599710 + ... + 1153657440.

It is an arithmetic number, because the mean of its divisors is an integer number (977085926784).

Almost surely, 2^{66600131263325} is an apocalyptic number.

It is an amenable number.

66600131263325 is a deficient number, since it is larger than the sum of its proper divisors (27200117707939).

66600131263325 is a wasteful number, since it uses less digits than its factorization.

66600131263325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58947 (or 58942 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 44.

The spelling of 66600131263325 in words is "sixty-six trillion, six hundred billion, one hundred thirty-one million, two hundred sixty-three thousand, three hundred twenty-five".