66507071127 has 8 divisors (see below), whose sum is σ = 101344108416. Its totient is φ = 38004040632.

The previous prime is 66507071123. The next prime is 66507071201. The reversal of 66507071127 is 72117070566.

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

It is not a de Polignac number, because 66507071127 - 2² = 66507071123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66507071123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1583501673 + ... + 1583501714.

It is an arithmetic number, because the mean of its divisors is an integer number (12668013552).

Almost surely, 2^66507071127 is an apocalyptic number.

66507071127 is a deficient number, since it is larger than the sum of its proper divisors (34837037289).

66507071127 is a wasteful number, since it uses less digits than its factorization.

66507071127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167003397.

The product of its (nonzero) digits is 123480, while the sum is 42.

The spelling of 66507071127 in words is "sixty-six billion, five hundred seven million, seventy-one thousand, one hundred twenty-seven".