6666655110 has 64 divisors (see below), whose sum is σ = 16741029888. Its totient is φ = 1695855744.

The previous prime is 6666655109. The next prime is 6666655117. The reversal of 6666655110 is 115566666.

It is a super-2 number, since 2×6666655110² = 88888580711378224200, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666655117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244419 + ... + 270321.

It is an arithmetic number, because the mean of its divisors is an integer number (261578592).

Almost surely, 2^6666655110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6666655110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8370514944).

6666655110 is an abundant number, since it is smaller than the sum of its proper divisors (10074374778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6666655110 is a wasteful number, since it uses less digits than its factorization.

6666655110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26309.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 6666655110 is about 81649.5873229008. The cubic root of 6666655110 is about 1882.0709702375.

It can be divided in two parts, 666 and 6655110, that added together give a triangular number (6655776 = T₃₆₄₈).

The spelling of 6666655110 in words is "six billion, six hundred sixty-six million, six hundred fifty-five thousand, one hundred ten".