3666669075677 has 4 divisors (see below), whose sum is σ = 3666709873500. Its totient is φ = 3666628277856.

The previous prime is 3666669075647. The next prime is 3666669075683. The reversal of 3666669075677 is 7765709666663.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 490820743396 + 3175848332281 = 700586^2 + 1782091^2 .

It is a cyclic number.

It is not a de Polignac number, because 3666669075677 - 2³² = 3662374108381 is a prime.

It is a super-3 number, since 3×3666669075677³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666669075647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20263802 + ... + 20443947.

It is an arithmetic number, because the mean of its divisors is an integer number (916677468375).

Almost surely, 2^{3666669075677} is an apocalyptic number.

It is an amenable number.

3666669075677 is a deficient number, since it is larger than the sum of its proper divisors (40797823).

3666669075677 is an equidigital number, since it uses as much as digits as its factorization.

3666669075677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40797822.

The product of its (nonzero) digits is 2160406080, while the sum is 74.

The spelling of 3666669075677 in words is "three trillion, six hundred sixty-six billion, six hundred sixty-nine million, seventy-five thousand, six hundred seventy-seven".