66670800808137 has 16 divisors (see below), whose sum is σ = 93876957877248. Its totient is φ = 42002488090640.

The previous prime is 66670800808099. The next prime is 66670800808163. The reversal of 66670800808137 is 73180800807666.

It is a cyclic number.

It is not a de Polignac number, because 66670800808137 - 2¹⁰ = 66670800807113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66670800808187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5820738189 + ... + 5820749642.

It is an arithmetic number, because the mean of its divisors is an integer number (5867309867328).

Almost surely, 2^{66670800808137} is an apocalyptic number.

It is an amenable number.

66670800808137 is a deficient number, since it is larger than the sum of its proper divisors (27206157069111).

66670800808137 is a wasteful number, since it uses less digits than its factorization.

66670800808137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11641487940.

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 66670800808137 in words is "sixty-six trillion, six hundred seventy billion, eight hundred million, eight hundred eight thousand, one hundred thirty-seven".