66083671767 has 8 divisors (see below), whose sum is σ = 88123181824. Its totient is φ = 44049971448.

The previous prime is 66083671699. The next prime is 66083671813. The reversal of 66083671767 is 76717638066.

It is a happy number.

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

It is not a de Polignac number, because 66083671767 - 2¹⁴ = 66083655383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66083671067) 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, 1425823 + ... + 1471440.

It is an arithmetic number, because the mean of its divisors is an integer number (11015397728).

Almost surely, 2^66083671767 is an apocalyptic number.

66083671767 is a deficient number, since it is larger than the sum of its proper divisors (22039510057).

66083671767 is a wasteful number, since it uses less digits than its factorization.

66083671767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904869.

The product of its (nonzero) digits is 10668672, while the sum is 57.

The spelling of 66083671767 in words is "sixty-six billion, eighty-three million, six hundred seventy-one thousand, seven hundred sixty-seven".