3420666855 has 20 divisors (see below), whose sum is σ = 6131862792. Its totient is φ = 1824355440.

The previous prime is 3420666853. The next prime is 3420666857. The reversal of 3420666855 is 5586660243.

It is an interprime number because it is at equal distance from previous prime (3420666853) and next prime (3420666857).

It is not a de Polignac number, because 3420666855 - 2¹ = 3420666853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3420666855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420666853) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4222641 + ... + 4223450.

Almost surely, 2^3420666855 is an apocalyptic number.

3420666855 is a deficient number, since it is larger than the sum of its proper divisors (2711195937).

3420666855 is an equidigital number, since it uses as much as digits as its factorization.

3420666855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8446108 (or 8446099 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The square root of 3420666855 is about 58486.4672809018. The cubic root of 3420666855 is about 1506.7351730332.

The spelling of 3420666855 in words is "three billion, four hundred twenty million, six hundred sixty-six thousand, eight hundred fifty-five".