6664611255 has 16 divisors (see below), whose sum is σ = 10664390880. Its totient is φ = 3554121728.

The previous prime is 6664611253. The next prime is 6664611257. The reversal of 6664611255 is 5521164666.

It is an interprime number because it is at equal distance from previous prime (6664611253) and next prime (6664611257).

It is a cyclic number.

It is not a de Polignac number, because 6664611255 - 2¹ = 6664611253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664611251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290899 + ... + 312971.

It is an arithmetic number, because the mean of its divisors is an integer number (666524430).

Almost surely, 2^6664611255 is an apocalyptic number.

6664611255 is a deficient number, since it is larger than the sum of its proper divisors (3999779625).

6664611255 is a wasteful number, since it uses less digits than its factorization.

6664611255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42210.

The product of its digits is 259200, while the sum is 42.

The square root of 6664611255 is about 81637.0703479737. The cubic root of 6664611255 is about 1881.8786162373.

The spelling of 6664611255 in words is "six billion, six hundred sixty-four million, six hundred eleven thousand, two hundred fifty-five".