66548371713 has 8 divisors (see below), whose sum is σ = 89800212768. Its totient is φ = 43831055904.

The previous prime is 66548371711. The next prime is 66548371733. The reversal of 66548371713 is 31717384566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66548371713 - 2¹ = 66548371711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66548371711) 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 7 ways as a sum of consecutive naturals, for example, 133631020 + ... + 133631517.

It is an arithmetic number, because the mean of its divisors is an integer number (11225026596).

Almost surely, 2^66548371713 is an apocalyptic number.

It is an amenable number.

66548371713 is a deficient number, since it is larger than the sum of its proper divisors (23251841055).

66548371713 is a wasteful number, since it uses less digits than its factorization.

66548371713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267262623.

The product of its digits is 2540160, while the sum is 51.

The spelling of 66548371713 in words is "sixty-six billion, five hundred forty-eight million, three hundred seventy-one thousand, seven hundred thirteen".