66886741567 has 8 divisors (see below), whose sum is σ = 68808482496. Its totient is φ = 64985776512.

The previous prime is 66886741547. The next prime is 66886741573. The reversal of 66886741567 is 76514768866.

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

It is not a de Polignac number, because 66886741567 - 2¹¹ = 66886739519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66886741499 and 66886741508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66886741547) 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, 5187438 + ... + 5200315.

It is an arithmetic number, because the mean of its divisors is an integer number (8601060312).

Almost surely, 2^66886741567 is an apocalyptic number.

66886741567 is a deficient number, since it is larger than the sum of its proper divisors (1921740929).

66886741567 is a wasteful number, since it uses less digits than its factorization.

66886741567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10387937.

The product of its digits is 81285120, while the sum is 64.

The spelling of 66886741567 in words is "sixty-six billion, eight hundred eighty-six million, seven hundred forty-one thousand, five hundred sixty-seven".