3666670336997 has 4 divisors (see below), whose sum is σ = 3668776410156. Its totient is φ = 3664564263840.

The previous prime is 3666670336991. The next prime is 3666670336999. The reversal of 3666670336997 is 7996330766663.

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 689806658116 + 2976863678881 = 830546^2 + 1725359^2 .

It is a cyclic number.

It is not a de Polignac number, because 3666670336997 - 2¹² = 3666670332901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3666670336997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666670336991) 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, 1053033968 + ... + 1053037449.

It is an arithmetic number, because the mean of its divisors is an integer number (917194102539).

Almost surely, 2^{3666670336997} is an apocalyptic number.

It is an amenable number.

3666670336997 is a deficient number, since it is larger than the sum of its proper divisors (2106073159).

3666670336997 is a wasteful number, since it uses less digits than its factorization.

3666670336997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106073158.

The product of its (nonzero) digits is 833299488, while the sum is 71.

The spelling of 3666670336997 in words is "three trillion, six hundred sixty-six billion, six hundred seventy million, three hundred thirty-six thousand, nine hundred ninety-seven".