66151842671 has 8 divisors (see below), whose sum is σ = 70047434304. Its totient is φ = 62256729600.

The previous prime is 66151842619. The next prime is 66151842703. The reversal of 66151842671 is 17624815166.

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

It is a cyclic number.

It is not a de Polignac number, because 66151842671 - 2¹⁴ = 66151826287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66151842371) 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, 187511 + ... + 409223.

It is an arithmetic number, because the mean of its divisors is an integer number (8755929288).

Almost surely, 2^66151842671 is an apocalyptic number.

66151842671 is a deficient number, since it is larger than the sum of its proper divisors (3895591633).

66151842671 is a wasteful number, since it uses less digits than its factorization.

66151842671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239281.

The product of its digits is 483840, while the sum is 47.

The spelling of 66151842671 in words is "sixty-six billion, one hundred fifty-one million, eight hundred forty-two thousand, six hundred seventy-one".