666005505110 has 32 divisors (see below), whose sum is σ = 1339690018464. Its totient is φ = 236276896000.

The previous prime is 666005505103. The next prime is 666005505133. The reversal of 666005505110 is 11505500666.

It is a super-2 number, since 2×666005505110² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73832021 + ... + 73841040.

It is an arithmetic number, because the mean of its divisors is an integer number (41865313077).

Almost surely, 2^666005505110 is an apocalyptic number.

666005505110 is an abundant number, since it is smaller than the sum of its proper divisors (673684513354).

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

666005505110 is a wasteful number, since it uses less digits than its factorization.

666005505110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147673120.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 666005505110 in words is "six hundred sixty-six billion, five million, five hundred five thousand, one hundred ten".