66083671766 has 16 divisors (see below), whose sum is σ = 113941132704. Its totient is φ = 28157864064.

The previous prime is 66083671699. The next prime is 66083671813. The reversal of 66083671766 is 66717638066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13639955 + ... + 13644798.

It is an arithmetic number, because the mean of its divisors is an integer number (7121320794).

Almost surely, 2^66083671766 is an apocalyptic number.

66083671766 is a deficient number, since it is larger than the sum of its proper divisors (47857460938).

66083671766 is a wasteful number, since it uses less digits than its factorization.

66083671766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27284935.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 66083671766 in words is "sixty-six billion, eighty-three million, six hundred seventy-one thousand, seven hundred sixty-six".