666506015110 has 32 divisors (see below), whose sum is σ = 1292084644032. Its totient is φ = 246077696640.

The previous prime is 666506015051. The next prime is 666506015129. The reversal of 666506015110 is 11510605666.

It is a self number, because there is not a number n which added to its sum of digits gives 666506015110.

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, 1819620 + ... + 2155000.

It is an arithmetic number, because the mean of its divisors is an integer number (40377645126).

Almost surely, 2^666506015110 is an apocalyptic number.

666506015110 is a deficient number, since it is larger than the sum of its proper divisors (625578628922).

666506015110 is a wasteful number, since it uses less digits than its factorization.

666506015110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350688.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 666506015110 in words is "six hundred sixty-six billion, five hundred six million, fifteen thousand, one hundred ten".