66917127083 has 6 divisors (see below), whose sum is σ = 70624447524. Its totient is φ = 63395172684.

The previous prime is 66917127049. The next prime is 66917127133. The reversal of 66917127083 is 38072171966.

It is a de Polignac number, because none of the positive numbers 2^k-66917127083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66917127983) 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 5 ways as a sum of consecutive naturals, for example, 92682641 + ... + 92683362.

It is an arithmetic number, because the mean of its divisors is an integer number (11770741254).

Almost surely, 2^66917127083 is an apocalyptic number.

66917127083 is a deficient number, since it is larger than the sum of its proper divisors (3707320441).

66917127083 is a wasteful number, since it uses less digits than its factorization.

66917127083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185366041 (or 185366022 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 66917127083 in words is "sixty-six billion, nine hundred seventeen million, one hundred twenty-seven thousand, eighty-three".