3351866665687 has 2 divisors, whose sum is σ = 3351866665688. Its totient is φ = 3351866665686.

The previous prime is 3351866665649. The next prime is 3351866665757. The reversal of 3351866665687 is 7865666681533.

It is an a-pointer prime, because the next prime (3351866665757) can be obtained adding 3351866665687 to its sum of digits (70).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3351866665687 is a prime.

It is a super-2 number, since 2×3351866665687² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3351866668687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1675933332843 + 1675933332844.

It is an arithmetic number, because the mean of its divisors is an integer number (1675933332844).

Almost surely, 2^{3351866665687} is an apocalyptic number.

3351866665687 is a deficient number, since it is larger than the sum of its proper divisors (1).

3351866665687 is an equidigital number, since it uses as much as digits as its factorization.

3351866665687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 783820800, while the sum is 70.

The spelling of 3351866665687 in words is "three trillion, three hundred fifty-one billion, eight hundred sixty-six million, six hundred sixty-five thousand, six hundred eighty-seven".